764265125505 has 128 divisors (see below), whose sum is σ = 1488844800000. Its totient is φ = 327409625088.

The previous prime is 764265125501. The next prime is 764265125521. The reversal of 764265125505 is 505521562467.

It is not a de Polignac number, because 764265125505 - 2² = 764265125501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (764265125501) 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 127 ways as a sum of consecutive naturals, for example, 14165821 + ... + 14219669.

It is an arithmetic number, because the mean of its divisors is an integer number (11631600000).

Almost surely, 2^764265125505 is an apocalyptic number.

It is an amenable number.

764265125505 is a deficient number, since it is larger than the sum of its proper divisors (724579674495).

764265125505 is a wasteful number, since it uses less digits than its factorization.

764265125505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54031.

The product of its (nonzero) digits is 2520000, while the sum is 48.

The spelling of 764265125505 in words is "seven hundred sixty-four billion, two hundred sixty-five million, one hundred twenty-five thousand, five hundred five".