913937379133 has 4 divisors (see below), whose sum is σ = 915295384828. Its totient is φ = 912579373440.

The previous prime is 913937379119. The next prime is 913937379143. The reversal of 913937379133 is 331973739319.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110408004729 + 803529374404 = 332277^2 + 896398^2 .

It is a cyclic number.

It is not a de Polignac number, because 913937379133 - 2³³ = 905347444541 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 (913937379143) 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, 679001838 + ... + 679003183.

It is an arithmetic number, because the mean of its divisors is an integer number (228823846207).

Almost surely, 2^913937379133 is an apocalyptic number.

It is an amenable number.

913937379133 is a deficient number, since it is larger than the sum of its proper divisors (1358005695).

913937379133 is a wasteful number, since it uses less digits than its factorization.

913937379133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358005694.

The product of its digits is 8680203, while the sum is 58.

The spelling of 913937379133 in words is "nine hundred thirteen billion, nine hundred thirty-seven million, three hundred seventy-nine thousand, one hundred thirty-three".