2725264555640 has 128 divisors (see below), whose sum is σ = 6890187870720. Its totient is φ = 961547328000.

The previous prime is 2725264555639. The next prime is 2725264555759. The reversal of 2725264555640 is 465554625272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2379962 + ... + 3333878.

It is an arithmetic number, because the mean of its divisors is an integer number (53829592740).

Almost surely, 2^{2725264555640} is an apocalyptic number.

2725264555640 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 2725264555640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3445093935360).

2725264555640 is an abundant number, since it is smaller than the sum of its proper divisors (4164923315080).

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

2725264555640 is a wasteful number, since it uses less digits than its factorization.

2725264555640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954133 (or 954129 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 53.

The spelling of 2725264555640 in words is "two trillion, seven hundred twenty-five billion, two hundred sixty-four million, five hundred fifty-five thousand, six hundred forty".