764142445056 has 80 divisors (see below), whose sum is σ = 2142866642400. Its totient is φ = 241308131328.

The previous prime is 764142445019. The next prime is 764142445057. The reversal of 764142445056 is 650544241467.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 764142444996 and 764142445014.

It is not an unprimeable number, because it can be changed into a prime (764142445057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13062621 + ... + 13120988.

It is an arithmetic number, because the mean of its divisors is an integer number (26785833030).

Almost surely, 2^764142445056 is an apocalyptic number.

764142445056 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

764142445056 is an abundant number, since it is smaller than the sum of its proper divisors (1378724197344).

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

764142445056 is a wasteful number, since it uses less digits than its factorization.

764142445056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26183649 (or 26183633 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 764142445056 in words is "seven hundred sixty-four billion, one hundred forty-two million, four hundred forty-five thousand, fifty-six".