2573172520440 has 128 divisors (see below), whose sum is σ = 7800615912960. Its totient is φ = 678981118464.

The previous prime is 2573172520433. The next prime is 2573172520447. The reversal of 2573172520440 is 440252713752.

2573172520440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2573172520433) and next prime (2573172520447).

It is a junction number, because it is equal to n+sod(n) for n = 2573172520392 and 2573172520401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2573172520447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15702207 + ... + 15865233.

It is an arithmetic number, because the mean of its divisors is an integer number (60942311820).

Almost surely, 2^{2573172520440} is an apocalyptic number.

2573172520440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2573172520440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3900307956480).

2573172520440 is an abundant number, since it is smaller than the sum of its proper divisors (5227443392520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2573172520440 is a wasteful number, since it uses less digits than its factorization.

2573172520440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164421 (or 164417 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 2573172520440 in words is "two trillion, five hundred seventy-three billion, one hundred seventy-two million, five hundred twenty thousand, four hundred forty".