78575793575 has 6 divisors (see below), whose sum is σ = 97433984064. Its totient is φ = 62860634840.

The previous prime is 78575793559. The next prime is 78575793587. The reversal of 78575793575 is 57539757587.

It is not a de Polignac number, because 78575793575 - 2⁴ = 78575793559 is a prime.

It is a super-2 number, since 2×78575793575² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1571515847 + ... + 1571515896.

It is an arithmetic number, because the mean of its divisors is an integer number (16238997344).

Almost surely, 2^78575793575 is an apocalyptic number.

78575793575 is a deficient number, since it is larger than the sum of its proper divisors (18858190489).

78575793575 is a wasteful number, since it uses less digits than its factorization.

78575793575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143031753 (or 3143031748 counting only the distinct ones).

The product of its digits is 324135000, while the sum is 68.

The spelling of 78575793575 in words is "seventy-eight billion, five hundred seventy-five million, seven hundred ninety-three thousand, five hundred seventy-five".