913641786957 has 4 divisors (see below), whose sum is σ = 1218189049280. Its totient is φ = 609094524636.

The previous prime is 913641786947. The next prime is 913641787031. The reversal of 913641786957 is 759687146319.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 913641786957 - 2¹⁰ = 913641785933 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 (913641786947) 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, 152273631157 + ... + 152273631162.

It is an arithmetic number, because the mean of its divisors is an integer number (304547262320).

Almost surely, 2^913641786957 is an apocalyptic number.

It is an amenable number.

913641786957 is a deficient number, since it is larger than the sum of its proper divisors (304547262323).

913641786957 is a wasteful number, since it uses less digits than its factorization.

913641786957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304547262322.

The product of its digits is 68584320, while the sum is 66.

The spelling of 913641786957 in words is "nine hundred thirteen billion, six hundred forty-one million, seven hundred eighty-six thousand, nine hundred fifty-seven".