764851398080 has 224 divisors, whose sum is σ = 2272264980480. Its totient is φ = 238232494080.

The previous prime is 764851398061. The next prime is 764851398107. The reversal of 764851398080 is 80893158467.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×764851398080² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38995316 + ... + 39014924.

Almost surely, 2^764851398080 is an apocalyptic number.

764851398080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764851398080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1136132490240).

764851398080 is an abundant number, since it is smaller than the sum of its proper divisors (1507413582400).

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

764851398080 is a wasteful number, since it uses less digits than its factorization.

764851398080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21227 (or 21217 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 764851398080 in words is "seven hundred sixty-four billion, eight hundred fifty-one million, three hundred ninety-eight thousand, eighty".