764426431761 has 8 divisors (see below), whose sum is σ = 1025338448064. Its totient is φ = 506566018320.

The previous prime is 764426431751. The next prime is 764426431807. The reversal of 764426431761 is 167134624467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 764426431761 - 2²⁹ = 763889560849 is a prime.

It is a super-2 number, since 2×764426431761² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (764426431721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762900130 + ... + 762901131.

It is an arithmetic number, because the mean of its divisors is an integer number (128167306008).

Almost surely, 2^764426431761 is an apocalyptic number.

It is an amenable number.

764426431761 is a deficient number, since it is larger than the sum of its proper divisors (260912016303).

764426431761 is a wasteful number, since it uses less digits than its factorization.

764426431761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525801431.

The product of its digits is 4064256, while the sum is 51.

The spelling of 764426431761 in words is "seven hundred sixty-four billion, four hundred twenty-six million, four hundred thirty-one thousand, seven hundred sixty-one".