78572150085 has 48 divisors (see below), whose sum is σ = 148505220288. Its totient is φ = 35165145600.

The previous prime is 78572150057. The next prime is 78572150089. The reversal of 78572150085 is 58005127587.

It is not a de Polignac number, because 78572150085 - 2⁵ = 78572150053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78572150089) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1380976 + ... + 1436745.

It is an arithmetic number, because the mean of its divisors is an integer number (3093858756).

Almost surely, 2^78572150085 is an apocalyptic number.

It is an amenable number.

78572150085 is a deficient number, since it is larger than the sum of its proper divisors (69933070203).

78572150085 is a wasteful number, since it uses less digits than its factorization.

78572150085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817766 (or 2817753 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 48.

The spelling of 78572150085 in words is "seventy-eight billion, five hundred seventy-two million, one hundred fifty thousand, eighty-five".