57797681823 has 36 divisors (see below), whose sum is σ = 97381736400. Its totient is φ = 33019613928.

The previous prime is 57797681813. The next prime is 57797681827. The reversal of 57797681823 is 32818679775.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

57797681823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57797681823 - 2⁸ = 57797681567 is a prime.

It is a super-2 number, since 2×57797681823² (a number of 22 digits) contains 22 as substring.

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 (57797681827) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13355286 + ... + 13359612.

Almost surely, 2^57797681823 is an apocalyptic number.

57797681823 is a deficient number, since it is larger than the sum of its proper divisors (39584054577).

57797681823 is an frugal number, since it uses more digits than its factorization.

57797681823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8681 (or 4337 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

Multiplying 57797681823 by its sum of digits (63), we get a square (3641253954849 = 1908207²).

57797681823 divided by its sum of digits (63) gives a square (917423521 = 30289²).

The spelling of 57797681823 in words is "fifty-seven billion, seven hundred ninety-seven million, six hundred eighty-one thousand, eight hundred twenty-three".