78736088505 has 16 divisors (see below), whose sum is σ = 126177404544. Its totient is φ = 41926026240.

The previous prime is 78736088491. The next prime is 78736088537. The reversal of 78736088505 is 50588063787.

It is not a de Polignac number, because 78736088505 - 2²¹ = 78733991353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4149864 + ... + 4168793.

It is an arithmetic number, because the mean of its divisors is an integer number (7886087784).

Almost surely, 2^78736088505 is an apocalyptic number.

It is an amenable number.

78736088505 is a deficient number, since it is larger than the sum of its proper divisors (47441316039).

78736088505 is a wasteful number, since it uses less digits than its factorization.

78736088505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8319296.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 78736088505 in words is "seventy-eight billion, seven hundred thirty-six million, eighty-eight thousand, five hundred five".