57145507764 has 12 divisors (see below), whose sum is σ = 133339518144. Its totient is φ = 19048502584.

The previous prime is 57145507763. The next prime is 57145507781. The reversal of 57145507764 is 46770554175.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57145507763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381062812 + ... + 2381062835.

It is an arithmetic number, because the mean of its divisors is an integer number (11111626512).

Almost surely, 2^57145507764 is an apocalyptic number.

It is an amenable number.

57145507764 is an abundant number, since it is smaller than the sum of its proper divisors (76194010380).

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

57145507764 is a wasteful number, since it uses less digits than its factorization.

57145507764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762125654 (or 4762125652 counting only the distinct ones).

The product of its (nonzero) digits is 4116000, while the sum is 51.

The spelling of 57145507764 in words is "fifty-seven billion, one hundred forty-five million, five hundred seven thousand, seven hundred sixty-four".