764949648996 has 81 divisors (see below), whose sum is σ = 2093991234699. Its totient is φ = 235348132032.

The previous prime is 764949648989. The next prime is 764949648997. The reversal of 764949648996 is 699846949467.

The square root of 764949648996 is 874614.

It is a perfect power (a square), and thus also a powerful number.

764949648996 is a `hidden beast` number, since 7 + 6 + 4 + 9 + 49 + 6 + 489 + 96 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 524300535396 + 240649113600 = 724086^2 + 490560^2 .

It is not an unprimeable number, because it can be changed into a prime (764949648997) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 68214286 + ... + 68225498.

Almost surely, 2^764949648996 is an apocalyptic number.

764949648996 is the 874614-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764949648996

764949648996 is an abundant number, since it is smaller than the sum of its proper divisors (1329041585703).

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

764949648996 is a wasteful number, since it uses less digits than its factorization.

764949648996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22462 (or 11231 counting only the distinct ones).

The product of its digits is 5079158784, while the sum is 81.

Multiplying 764949648996 by its sum of digits (81), we get a square (61960921568676 = 7871526²).

The spelling of 764949648996 in words is "seven hundred sixty-four billion, nine hundred forty-nine million, six hundred forty-eight thousand, nine hundred ninety-six".