78546968115 has 128 divisors (see below), whose sum is σ = 164396335104. Its totient is φ = 31071168000.

The previous prime is 78546968099. The next prime is 78546968131. The reversal of 78546968115 is 51186964587.

It is an interprime number because it is at equal distance from previous prime (78546968099) and next prime (78546968131).

It is not a de Polignac number, because 78546968115 - 2⁴ = 78546968099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2166124 + ... + 2202086.

It is an arithmetic number, because the mean of its divisors is an integer number (1284346368).

Almost surely, 2^78546968115 is an apocalyptic number.

78546968115 is an abundant number, since it is smaller than the sum of its proper divisors (85849366989).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78546968115 is a wasteful number, since it uses less digits than its factorization.

78546968115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36081.

The product of its digits is 14515200, while the sum is 60.

The spelling of 78546968115 in words is "seventy-eight billion, five hundred forty-six million, nine hundred sixty-eight thousand, one hundred fifteen".