15249930973456 has 15 divisors (see below), whose sum is σ = 29546771525751. Its totient is φ = 7624957676496.

The previous prime is 15249930973439. The next prime is 15249930973471. The reversal of 15249930973456 is 65437903994251.

The square root of 15249930973456 is 3905116.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15249930973391 and 15249930973400.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15132325 + ... + 16108603.

Almost surely, 2^{15249930973456} is an apocalyptic number.

15249930973456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15249930973456 is the 3905116-th square number.

It is an amenable number.

15249930973456 is a deficient number, since it is larger than the sum of its proper divisors (14296840552295).

15249930973456 is an frugal number, since it uses more digits than its factorization.

15249930973456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952566 (or 976281 counting only the distinct ones).

The product of its (nonzero) digits is 220449600, while the sum is 67.

The spelling of 15249930973456 in words is "fifteen trillion, two hundred forty-nine billion, nine hundred thirty million, nine hundred seventy-three thousand, four hundred fifty-six".