7913929913 has 16 divisors (see below), whose sum is σ = 8906152320. Its totient is φ = 6987845376.

The previous prime is 7913929853. The next prime is 7913929937. The reversal of 7913929913 is 3199293197.

It is a happy number.

It is not a de Polignac number, because 7913929913 - 2²⁶ = 7846821049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7913929013) 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, 85670 + ... + 152207.

It is an arithmetic number, because the mean of its divisors is an integer number (556634520).

Almost surely, 2^7913929913 is an apocalyptic number.

It is an amenable number.

7913929913 is a deficient number, since it is larger than the sum of its proper divisors (992222407).

7913929913 is a wasteful number, since it uses less digits than its factorization.

7913929913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238016.

The product of its digits is 826686, while the sum is 53.

The square root of 7913929913 is about 88960.2715429759. The cubic root of 7913929913 is about 1992.8016154631.

The spelling of 7913929913 in words is "seven billion, nine hundred thirteen million, nine hundred twenty-nine thousand, nine hundred thirteen".