764435319843072 has 36 divisors (see below), whose sum is σ = 2034512752292720. Its totient is φ = 254811773280768.

The previous prime is 764435319843071. The next prime is 764435319843073. The reversal of 764435319843072 is 270348913534467.

It is an interprime number because it is at equal distance from previous prime (764435319843071) and next prime (764435319843073).

It is a super-2 number, since 2×764435319843072² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 764435319842994 and 764435319843012.

It is not an unprimeable number, because it can be changed into a prime (764435319843071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497679243922 + ... + 497679245457.

It is a 2-persistent number, because it is pandigital, and so is 2⋅764435319843072 = 1528870639686144, but 3⋅764435319843072 = 2293305959529216 is not.

Almost surely, 2^{764435319843072} is an apocalyptic number.

It is an amenable number.

764435319843072 is an abundant number, since it is smaller than the sum of its proper divisors (1270077432449648).

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

764435319843072 is an equidigital number, since it uses as much as digits as its factorization.

764435319843072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995358489398 (or 995358489384 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 66.

The spelling of 764435319843072 in words is "seven hundred sixty-four trillion, four hundred thirty-five billion, three hundred nineteen million, eight hundred forty-three thousand, seventy-two".