773689121964 has 36 divisors (see below), whose sum is σ = 2133506367720. Its totient is φ = 234451248960.

The previous prime is 773689121963. The next prime is 773689121993. The reversal of 773689121964 is 469121986377.

773689121964 is a `hidden beast` number, since 77 + 368 + 9 + 12 + 196 + 4 = 666.

773689121964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (773689121963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 976879809 + ... + 976880600.

It is an arithmetic number, because the mean of its divisors is an integer number (59264065770).

Almost surely, 2^773689121964 is an apocalyptic number.

It is an amenable number.

773689121964 is an abundant number, since it is smaller than the sum of its proper divisors (1359817245756).

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

773689121964 is a wasteful number, since it uses less digits than its factorization.

773689121964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953760430 (or 1953760425 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 773689121964 in words is "seven hundred seventy-three billion, six hundred eighty-nine million, one hundred twenty-one thousand, nine hundred sixty-four".