64712425431 has 4 divisors (see below), whose sum is σ = 86283233912. Its totient is φ = 43141616952.

The previous prime is 64712425423. The next prime is 64712425441. The reversal of 64712425431 is 13452421746.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64712425431 - 2³ = 64712425423 is a prime.

It is a super-2 number, since 2×64712425431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64712425431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64712425441) 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, 10785404236 + ... + 10785404241.

It is an arithmetic number, because the mean of its divisors is an integer number (21570808478).

Almost surely, 2^64712425431 is an apocalyptic number.

64712425431 is a deficient number, since it is larger than the sum of its proper divisors (21570808481).

64712425431 is a wasteful number, since it uses less digits than its factorization.

64712425431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21570808480.

The product of its digits is 161280, while the sum is 39.

The spelling of 64712425431 in words is "sixty-four billion, seven hundred twelve million, four hundred twenty-five thousand, four hundred thirty-one".