57726983440 has 40 divisors (see below), whose sum is σ = 153388843200. Its totient is φ = 19792108416.

The previous prime is 57726983437. The next prime is 57726983497. The reversal of 57726983440 is 4438962775.

57726983440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 51541390 + ... + 51542509.

It is an arithmetic number, because the mean of its divisors is an integer number (3834721080).

Almost surely, 2^57726983440 is an apocalyptic number.

It is an amenable number.

57726983440 is an abundant number, since it is smaller than the sum of its proper divisors (95661859760).

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

57726983440 is a wasteful number, since it uses less digits than its factorization.

57726983440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103083919 (or 103083913 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 57726983440 in words is "fifty-seven billion, seven hundred twenty-six million, nine hundred eighty-three thousand, four hundred forty".