78583238587 has 12 divisors (see below), whose sum is σ = 92251814160. Its totient is φ = 66739102416.

The previous prime is 78583238579. The next prime is 78583238597.

78583238587 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78583238587 - 2³ = 78583238579 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78583238597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7351263 + ... + 7361944.

It is an arithmetic number, because the mean of its divisors is an integer number (7687651180).

Almost surely, 2^78583238587 is an apocalyptic number.

78583238587 is a deficient number, since it is larger than the sum of its proper divisors (13668575573).

78583238587 is a wasteful number, since it uses less digits than its factorization.

78583238587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14713330 (or 14713323 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 64.

The spelling of 78583238587 in words is "seventy-eight billion, five hundred eighty-three million, two hundred thirty-eight thousand, five hundred eighty-seven".