78793384392 has 60 divisors (see below), whose sum is σ = 220714448955. Its totient is φ = 26262079632.

The previous prime is 78793384363. The next prime is 78793384409. The reversal of 78793384392 is 29348339787.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

78793384392 is a `hidden beast` number, since 7 + 87 + 93 + 3 + 84 + 392 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39396692196 + 39396692196 = 198486^2 + 198486^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=198486.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7139983 + ... + 7151009.

Almost surely, 2^78793384392 is an apocalyptic number.

78793384392 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78793384392 is an abundant number, since it is smaller than the sum of its proper divisors (141921064563).

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

78793384392 is an frugal number, since it uses more digits than its factorization.

78793384392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22072 (or 11032 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 78793384392 in words is "seventy-eight billion, seven hundred ninety-three million, three hundred eighty-four thousand, three hundred ninety-two".