8012561488 has 10 divisors (see below), whose sum is σ = 15524337914. Its totient is φ = 4006280736.

The previous prime is 8012561441. The next prime is 8012561527. The reversal of 8012561488 is 8841652108.

It can be written as a sum of positive squares in only one way, i.e., 4346501184 + 3666060304 = 65928^2 + 60548^2 .

It is a super-2 number, since 2×8012561488² (a number of 21 digits) contains 22 as substring.

It is a congruent 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 as a sum of consecutive naturals, namely, 250392531 + ... + 250392562.

Almost surely, 2^8012561488 is an apocalyptic number.

It is an amenable number.

8012561488 is a deficient number, since it is larger than the sum of its proper divisors (7511776426).

8012561488 is a wasteful number, since it uses less digits than its factorization.

8012561488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500785101 (or 500785095 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 43.

The square root of 8012561488 is about 89512.9124093279. The cubic root of 8012561488 is about 2001.0462432588.

The spelling of 8012561488 in words is "eight billion, twelve million, five hundred sixty-one thousand, four hundred eighty-eight".