8015087574649 has 9 divisors (see below), whose sum is σ = 8378789107269. Its totient is φ = 7666543222140.

The previous prime is 8015087574629. The next prime is 8015087574707. The reversal of 8015087574649 is 9464757805108.

The square root of 8015087574649 is 2831093.

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

It is not a de Polignac number, because 8015087574649 - 2³⁷ = 7877648621177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8015087574629) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65053594 + ... + 65176684.

Almost surely, 2^{8015087574649} is an apocalyptic number.

8015087574649 is the 2831093-rd square number.

8015087574649 is the 1415547-th centered octagonal number.

It is an amenable number.

8015087574649 is a deficient number, since it is larger than the sum of its proper divisors (363701532620).

8015087574649 is an frugal number, since it uses more digits than its factorization.

8015087574649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246228 (or 123114 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 64.

Multiplying 8015087574649 by its sum of digits (64), we get a square (512965604777536 = 22648744²).

The spelling of 8015087574649 in words is "eight trillion, fifteen billion, eighty-seven million, five hundred seventy-four thousand, six hundred forty-nine".