85384515657 has 16 divisors (see below), whose sum is σ = 130132703232. Its totient is φ = 48782539920.

The previous prime is 85384515631. The next prime is 85384515691. The reversal of 85384515657 is 75651548358.

It is not a de Polignac number, because 85384515657 - 2¹² = 85384511561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85384515597 and 85384515606.

It is not an unprimeable number, because it can be changed into a prime (85384515617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236043 + ... + 475904.

It is an arithmetic number, because the mean of its divisors is an integer number (8133293952).

Almost surely, 2^85384515657 is an apocalyptic number.

It is an amenable number.

85384515657 is a deficient number, since it is larger than the sum of its proper divisors (44748187575).

85384515657 is a wasteful number, since it uses less digits than its factorization.

85384515657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717668.

The product of its digits is 20160000, while the sum is 57.

The spelling of 85384515657 in words is "eighty-five billion, three hundred eighty-four million, five hundred fifteen thousand, six hundred fifty-seven".