78538632324 has 24 divisors (see below), whose sum is σ = 183842302560. Its totient is φ = 26095902144.

The previous prime is 78538632307. The next prime is 78538632353. The reversal of 78538632324 is 42323683587.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10451334 + ... + 10458845.

It is an arithmetic number, because the mean of its divisors is an integer number (7660095940).

Almost surely, 2^78538632324 is an apocalyptic number.

It is an amenable number.

78538632324 is an abundant number, since it is smaller than the sum of its proper divisors (105303670236).

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

78538632324 is a wasteful number, since it uses less digits than its factorization.

78538632324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910499 (or 20910497 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 51.

The spelling of 78538632324 in words is "seventy-eight billion, five hundred thirty-eight million, six hundred thirty-two thousand, three hundred twenty-four".