15127213922 has 6 divisors (see below), whose sum is σ = 22691081793. Its totient is φ = 7563519992.

The previous prime is 15127213901. The next prime is 15127213961. The reversal of 15127213922 is 22931272151.

It can be written as a sum of positive squares in 2 ways, for example, as 8071045921 + 7056168001 = 89839^2 + 84001^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=86969.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 130454 + ... + 217422.

Almost surely, 2^15127213922 is an apocalyptic number.

15127213922 is a deficient number, since it is larger than the sum of its proper divisors (7563867871).

15127213922 is an frugal number, since it uses more digits than its factorization.

15127213922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173940 (or 86971 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The spelling of 15127213922 in words is "fifteen billion, one hundred twenty-seven million, two hundred thirteen thousand, nine hundred twenty-two".