764886672 has 160 divisors (see below), whose sum is σ = 2441093760. Its totient is φ = 227335680.

The previous prime is 764886671. The next prime is 764886677. The reversal of 764886672 is 276688467.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (764886671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250338 + ... + 253374.

It is an arithmetic number, because the mean of its divisors is an integer number (15256836).

Almost surely, 2^764886672 is an apocalyptic number.

764886672 is a gapful number since it is divisible by the number (72) 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 764886672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1220546880).

764886672 is an abundant number, since it is smaller than the sum of its proper divisors (1676207088).

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

764886672 is a wasteful number, since it uses less digits than its factorization.

764886672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118 (or 3106 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 764886672 is about 27656.5846047555. The cubic root of 764886672 is about 914.5322629548.

The spelling of 764886672 in words is "seven hundred sixty-four million, eight hundred eighty-six thousand, six hundred seventy-two".