913021949077 has 4 divisors (see below), whose sum is σ = 1043453656096. Its totient is φ = 782590242060.

The previous prime is 913021949053. The next prime is 913021949089. The reversal of 913021949077 is 770949120319.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-913021949077 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 (913021949027) 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, 65215853499 + ... + 65215853512.

It is an arithmetic number, because the mean of its divisors is an integer number (260863414024).

Almost surely, 2^913021949077 is an apocalyptic number.

It is an amenable number.

913021949077 is a deficient number, since it is larger than the sum of its proper divisors (130431707019).

913021949077 is a wasteful number, since it uses less digits than its factorization.

913021949077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130431707018.

The product of its (nonzero) digits is 857304, while the sum is 52.

The spelling of 913021949077 in words is "nine hundred thirteen billion, twenty-one million, nine hundred forty-nine thousand, seventy-seven".