15105979424 has 12 divisors (see below), whose sum is σ = 29739897054. Its totient is φ = 7552989696.

The previous prime is 15105979423. The next prime is 15105979451. The reversal of 15105979424 is 42497950151.

It can be written as a sum of positive squares in only one way, i.e., 13128576400 + 1977403024 = 114580^2 + 44468^2 .

It is a super-2 number, since 2×15105979424² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15105979423) 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 as a sum of consecutive naturals, namely, 236030897 + ... + 236030960.

Almost surely, 2^15105979424 is an apocalyptic number.

It is an amenable number.

15105979424 is a deficient number, since it is larger than the sum of its proper divisors (14633917630).

15105979424 is an equidigital number, since it uses as much as digits as its factorization.

15105979424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472061867 (or 472061859 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 15105979424 in words is "fifteen billion, one hundred five million, nine hundred seventy-nine thousand, four hundred twenty-four".