7912427912 has 16 divisors (see below), whose sum is σ = 15708496860. Its totient is φ = 3723495424.

The previous prime is 7912427909. The next prime is 7912427917. The reversal of 7912427912 is 2197242197.

It can be written as a sum of positive squares in 2 ways, for example, as 6341573956 + 1570853956 = 79634^2 + 39634^2 .

It is not an unprimeable number, because it can be changed into a prime (7912427917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29089673 + ... + 29089944.

Almost surely, 2^7912427912 is an apocalyptic number.

It is an amenable number.

7912427912 is a deficient number, since it is larger than the sum of its proper divisors (7796068948).

7912427912 is a wasteful number, since it uses less digits than its factorization.

7912427912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58179640 (or 58179636 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 7912427912 is about 88951.8291661279. The cubic root of 7912427912 is about 1992.6755348502.

The spelling of 7912427912 in words is "seven billion, nine hundred twelve million, four hundred twenty-seven thousand, nine hundred twelve".