72788534386 has 16 divisors (see below), whose sum is σ = 115946344800. Its totient is φ = 34173655488.

The previous prime is 72788534353. The next prime is 72788534417. The reversal of 72788534386 is 68343588727.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8471316 + ... + 8479903.

It is an arithmetic number, because the mean of its divisors is an integer number (7246646550).

Almost surely, 2^72788534386 is an apocalyptic number.

72788534386 is a deficient number, since it is larger than the sum of its proper divisors (43157810414).

72788534386 is a wasteful number, since it uses less digits than its factorization.

72788534386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16951353.

The product of its digits is 54190080, while the sum is 61.

The spelling of 72788534386 in words is "seventy-two billion, seven hundred eighty-eight million, five hundred thirty-four thousand, three hundred eighty-six".