913939291291 has 4 divisors (see below), whose sum is σ = 984242313712. Its totient is φ = 843636268872.

The previous prime is 913939291273. The next prime is 913939291319. The reversal of 913939291291 is 192192939319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192192939319 = 23 ⋅8356214753.

It is a cyclic number.

It is not a de Polignac number, because 913939291291 - 2²⁵ = 913905736859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913939291201) 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, 35151511191 + ... + 35151511216.

It is an arithmetic number, because the mean of its divisors is an integer number (246060578428).

Almost surely, 2^913939291291 is an apocalyptic number.

913939291291 is a deficient number, since it is larger than the sum of its proper divisors (70303022421).

913939291291 is a wasteful number, since it uses less digits than its factorization.

913939291291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70303022420.

The product of its digits is 2125764, while the sum is 58.

The spelling of 913939291291 in words is "nine hundred thirteen billion, nine hundred thirty-nine million, two hundred ninety-one thousand, two hundred ninety-one".