6385473657 has 24 divisors (see below), whose sum is σ = 9298897920. Its totient is φ = 4222310400.

The previous prime is 6385473637. The next prime is 6385473671. The reversal of 6385473657 is 7563745836.

6385473657 is a `hidden beast` number, since 6 + 38 + 547 + 3 + 65 + 7 = 666.

It is not a de Polignac number, because 6385473657 - 2⁷ = 6385473529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6385473607) 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, 547032 + ... + 558582.

It is an arithmetic number, because the mean of its divisors is an integer number (387454080).

Almost surely, 2^6385473657 is an apocalyptic number.

It is an amenable number.

6385473657 is a deficient number, since it is larger than the sum of its proper divisors (2913424263).

6385473657 is a wasteful number, since it uses less digits than its factorization.

6385473657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12053 (or 12050 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 54.

The square root of 6385473657 is about 79909.1587804552. The cubic root of 6385473657 is about 1855.2297753503.

The spelling of 6385473657 in words is "six billion, three hundred eighty-five million, four hundred seventy-three thousand, six hundred fifty-seven".