764776214620 has 48 divisors (see below), whose sum is σ = 1752406121088. Its totient is φ = 278041181760.

The previous prime is 764776214611. The next prime is 764776214627. The reversal of 764776214620 is 26412677467.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764776214627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671047 + ... + 1407073.

It is an arithmetic number, because the mean of its divisors is an integer number (36508460856).

Almost surely, 2^764776214620 is an apocalyptic number.

It is an amenable number.

764776214620 is an abundant number, since it is smaller than the sum of its proper divisors (987629906468).

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

764776214620 is a wasteful number, since it uses less digits than its factorization.

764776214620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740770 (or 740768 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 52.

It can be divided in two parts, 7647 and 76214620, that added together give a palindrome (76222267).

The spelling of 764776214620 in words is "seven hundred sixty-four billion, seven hundred seventy-six million, two hundred fourteen thousand, six hundred twenty".