7976308813 has 16 divisors (see below), whose sum is σ = 9173413440. Its totient is φ = 6859036800.

The previous prime is 7976308807. The next prime is 7976308831. The reversal of 7976308813 is 3188036797.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-7976308813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7976308883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109281 + ... + 167017.

It is an arithmetic number, because the mean of its divisors is an integer number (573338340).

Almost surely, 2^7976308813 is an apocalyptic number.

It is an amenable number.

7976308813 is a deficient number, since it is larger than the sum of its proper divisors (1197104627).

7976308813 is a wasteful number, since it uses less digits than its factorization.

7976308813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58428.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 7976308813 is about 89310.1831427973. The cubic root of 7976308813 is about 1998.0237823417.

The spelling of 7976308813 in words is "seven billion, nine hundred seventy-six million, three hundred eight thousand, eight hundred thirteen".