7927976512 has 28 divisors (see below), whose sum is σ = 15734922556. Its totient is φ = 3963271680.

The previous prime is 7927976509. The next prime is 7927976519. The reversal of 7927976512 is 2156797297.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4658881536 + 3269094976 = 68256^2 + 57176^2 .

It is a super-2 number, since 2×7927976512² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7927976519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632062 + ... + 644482.

Almost surely, 2^7927976512 is an apocalyptic number.

It is an amenable number.

7927976512 is a deficient number, since it is larger than the sum of its proper divisors (7806946044).

7927976512 is a wasteful number, since it uses less digits than its factorization.

7927976512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22406 (or 22396 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 55.

The square root of 7927976512 is about 89039.1852613219. The cubic root of 7927976512 is about 1993.9799402883.

The spelling of 7927976512 in words is "seven billion, nine hundred twenty-seven million, nine hundred seventy-six thousand, five hundred twelve".