57409633647 has 24 divisors (see below), whose sum is σ = 85144008768. Its totient is φ = 37253260800.

The previous prime is 57409633627. The next prime is 57409633657. The reversal of 57409633647 is 74633690475.

It is a happy number.

57409633647 is a `hidden beast` number, since 574 + 0 + 9 + 6 + 3 + 3 + 64 + 7 = 666.

It is not a de Polignac number, because 57409633647 - 2²³ = 57401245039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57409633593 and 57409633602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57409633627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19879 + ... + 339432.

It is an arithmetic number, because the mean of its divisors is an integer number (3547667032).

Almost surely, 2^57409633647 is an apocalyptic number.

57409633647 is a deficient number, since it is larger than the sum of its proper divisors (27734375121).

57409633647 is a wasteful number, since it uses less digits than its factorization.

57409633647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359791 (or 359788 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 57409633647 in words is "fifty-seven billion, four hundred nine million, six hundred thirty-three thousand, six hundred forty-seven".