79500454209 has 56 divisors (see below), whose sum is σ = 130199908800. Its totient is φ = 48119948640.

The previous prime is 79500454199. The next prime is 79500454213. The reversal of 79500454209 is 90245400597.

79500454209 is a `hidden beast` number, since 79 + 500 + 4 + 54 + 20 + 9 = 666.

It is not a de Polignac number, because 79500454209 - 2¹⁶ = 79500388673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79500454289) by changing a digit.

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 55 ways as a sum of consecutive naturals, for example, 6641772 + ... + 6653730.

Almost surely, 2^79500454209 is an apocalyptic number.

It is an amenable number.

79500454209 is a deficient number, since it is larger than the sum of its proper divisors (50699454591).

79500454209 is a wasteful number, since it uses less digits than its factorization.

79500454209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12817 (or 12802 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 79500454209 in words is "seventy-nine billion, five hundred million, four hundred fifty-four thousand, two hundred nine".