15479479794 has 16 divisors (see below), whose sum is σ = 31036168800. Its totient is φ = 5146958400.

The previous prime is 15479479789. The next prime is 15479479859. The reversal of 15479479794 is 49797497451.

It is a happy number.

It is a super-2 number, since 2×15479479794² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3214444 + ... + 3219255.

It is an arithmetic number, because the mean of its divisors is an integer number (1939760550).

Almost surely, 2^15479479794 is an apocalyptic number.

15479479794 is an abundant number, since it is smaller than the sum of its proper divisors (15556689006).

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

15479479794 is a wasteful number, since it uses less digits than its factorization.

15479479794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434105.

The product of its digits is 80015040, while the sum is 66.

The spelling of 15479479794 in words is "fifteen billion, four hundred seventy-nine million, four hundred seventy-nine thousand, seven hundred ninety-four".