15027861648 has 40 divisors (see below), whose sum is σ = 39069269248. Its totient is φ = 4977378432.

The previous prime is 15027861593. The next prime is 15027861659. The reversal of 15027861648 is 84616872051.

It is a super-2 number, since 2×15027861648² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 15027861597 and 15027861606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989536 + ... + 1004607.

Almost surely, 2^15027861648 is an apocalyptic number.

It is an amenable number.

15027861648 is an abundant number, since it is smaller than the sum of its proper divisors (24041407600).

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

15027861648 is a wasteful number, since it uses less digits than its factorization.

15027861648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994311 (or 1994305 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 15027861648 in words is "fifteen billion, twenty-seven million, eight hundred sixty-one thousand, six hundred forty-eight".