78575622339 has 8 divisors (see below), whose sum is σ = 104827064320. Its totient is φ = 52353964296.

The previous prime is 78575622299. The next prime is 78575622421. The reversal of 78575622339 is 93322657587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78575622339 - 2¹² = 78575618243 is a prime.

It is a super-2 number, since 2×78575622339² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78575623339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7439827 + ... + 7450380.

It is an arithmetic number, because the mean of its divisors is an integer number (13103383040).

Almost surely, 2^78575622339 is an apocalyptic number.

78575622339 is a deficient number, since it is larger than the sum of its proper divisors (26251441981).

78575622339 is a wasteful number, since it uses less digits than its factorization.

78575622339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14891969.

The product of its digits is 19051200, while the sum is 57.

The spelling of 78575622339 in words is "seventy-eight billion, five hundred seventy-five million, six hundred twenty-two thousand, three hundred thirty-nine".