2557880447472 has 120 divisors (see below), whose sum is σ = 8315274836960. Its totient is φ = 718842263040.

The previous prime is 2557880447453. The next prime is 2557880447477. The reversal of 2557880447472 is 2747440887552.

2557880447472 is a `hidden beast` number, since 2 + 5 + 5 + 78 + 80 + 447 + 47 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557880447477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20738347 + ... + 20861322.

Almost surely, 2^{2557880447472} is an apocalyptic number.

It is an amenable number.

2557880447472 is an abundant number, since it is smaller than the sum of its proper divisors (5757394389488).

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

2557880447472 is a wasteful number, since it uses less digits than its factorization.

2557880447472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41599751 (or 41599742 counting only the distinct ones).

The product of its (nonzero) digits is 140492800, while the sum is 63.

The spelling of 2557880447472 in words is "two trillion, five hundred fifty-seven billion, eight hundred eighty million, four hundred forty-seven thousand, four hundred seventy-two".