921093745764 has 48 divisors (see below), whose sum is σ = 2183506718400. Its totient is φ = 302168334336.

The previous prime is 921093745763. The next prime is 921093745769. The reversal of 921093745764 is 467547390129.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (921093745763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2002029 + ... + 2418740.

It is an arithmetic number, because the mean of its divisors is an integer number (45489723300).

Almost surely, 2^921093745764 is an apocalyptic number.

It is an amenable number.

921093745764 is an abundant number, since it is smaller than the sum of its proper divisors (1262412972636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

921093745764 is a wasteful number, since it uses less digits than its factorization.

921093745764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421052 (or 4421050 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 921093745764 in words is "nine hundred twenty-one billion, ninety-three million, seven hundred forty-five thousand, seven hundred sixty-four".