2402521790172 has 192 divisors, whose sum is σ = 6696004976640. Its totient is φ = 656111003904.

The previous prime is 2402521790099. The next prime is 2402521790173. The reversal of 2402521790172 is 2710971252042.

It is a super-2 number, since 2×2402521790172² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402521790173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 334283563 + ... + 334290749.

It is an arithmetic number, because the mean of its divisors is an integer number (34875025920).

Almost surely, 2^{2402521790172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2402521790172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3348002488320).

2402521790172 is an abundant number, since it is smaller than the sum of its proper divisors (4293483186468).

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

2402521790172 is a wasteful number, since it uses less digits than its factorization.

2402521790172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9120 (or 9118 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 2402521790172 in words is "two trillion, four hundred two billion, five hundred twenty-one million, seven hundred ninety thousand, one hundred seventy-two".