79622047458 has 18 divisors (see below), whose sum is σ = 172517030049. Its totient is φ = 26540283432.

The previous prime is 79622047429. The next prime is 79622047469. The reversal of 79622047458 is 85474022697.

79622047458 is a `hidden beast` number, since 7 + 9 + 622 + 0 + 4 + 7 + 4 + 5 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67822222329 + 11799825129 = 260427^2 + 108627^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=199527.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1163908 + ... + 1230416.

Almost surely, 2^79622047458 is an apocalyptic number.

79622047458 is an abundant number, since it is smaller than the sum of its proper divisors (92894982591).

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

79622047458 is an frugal number, since it uses more digits than its factorization.

79622047458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133026 (or 66514 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 79622047458 in words is "seventy-nine billion, six hundred twenty-two million, forty-seven thousand, four hundred fifty-eight".