78587645324 has 12 divisors (see below), whose sum is σ = 139465399248. Its totient is φ = 38740388400.

The previous prime is 78587645309. The next prime is 78587645371. The reversal of 78587645324 is 42354678587.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138358247 + ... + 138358814.

It is an arithmetic number, because the mean of its divisors is an integer number (11622116604).

Almost surely, 2^78587645324 is an apocalyptic number.

It is an amenable number.

78587645324 is a deficient number, since it is larger than the sum of its proper divisors (60877753924).

78587645324 is a wasteful number, since it uses less digits than its factorization.

78587645324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276717136 (or 276717134 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 59.

The spelling of 78587645324 in words is "seventy-eight billion, five hundred eighty-seven million, six hundred forty-five thousand, three hundred twenty-four".