57274447320 has 48 divisors (see below), whose sum is σ = 186141954960. Its totient is φ = 15273185856.

The previous prime is 57274447249. The next prime is 57274447331. The reversal of 57274447320 is 2374447275.

57274447320 is a `hidden beast` number, since 57 + 274 + 4 + 4 + 7 + 320 = 666.

It is a super-2 number, since 2×57274447320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79547484 + ... + 79548203.

It is an arithmetic number, because the mean of its divisors is an integer number (3877957395).

Almost surely, 2^57274447320 is an apocalyptic number.

It is an amenable number.

57274447320 is an abundant number, since it is smaller than the sum of its proper divisors (128867507640).

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

57274447320 is a wasteful number, since it uses less digits than its factorization.

57274447320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159095704 (or 159095697 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 45.

Subtracting from 57274447320 its sum of digits (45), we obtain a palindrome (57274447275).

The spelling of 57274447320 in words is "fifty-seven billion, two hundred seventy-four million, four hundred forty-seven thousand, three hundred twenty".