3957707554656 has 48 divisors (see below), whose sum is σ = 10394656731648. Its totient is φ = 1318515292800.

The previous prime is 3957707554643. The next prime is 3957707554663. The reversal of 3957707554656 is 6564557077593.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11082040 + ... + 11433591.

It is an arithmetic number, because the mean of its divisors is an integer number (216555348576).

Almost surely, 2^{3957707554656} is an apocalyptic number.

It is an amenable number.

3957707554656 is an abundant number, since it is smaller than the sum of its proper divisors (6436949176992).

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

3957707554656 is a wasteful number, since it uses less digits than its factorization.

3957707554656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22517475 (or 22517467 counting only the distinct ones).

The product of its (nonzero) digits is 833490000, while the sum is 69.

The spelling of 3957707554656 in words is "three trillion, nine hundred fifty-seven billion, seven hundred seven million, five hundred fifty-four thousand, six hundred fifty-six".