2913157993 has 2 divisors, whose sum is σ = 2913157994. Its totient is φ = 2913157992.

The previous prime is 2913157979. The next prime is 2913157997. The reversal of 2913157993 is 3997513192.

2913157993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2851880409 + 61277584 = 53403^2 + 7828^2 .

It is a cyclic number.

It is not a de Polignac number, because 2913157993 - 2²⁵ = 2879603561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2913157997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1456578996 + 1456578997.

It is an arithmetic number, because the mean of its divisors is an integer number (1456578997).

Almost surely, 2^2913157993 is an apocalyptic number.

It is an amenable number.

2913157993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2913157993 is an equidigital number, since it uses as much as digits as its factorization.

2913157993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 459270, while the sum is 49.

The square root of 2913157993 is about 53973.6787054579. The cubic root of 2913157993 is about 1428.1966595966.

The spelling of 2913157993 in words is "two billion, nine hundred thirteen million, one hundred fifty-seven thousand, nine hundred ninety-three".