672239314789 has 4 divisors (see below), whose sum is σ = 768273502624. Its totient is φ = 576205126956.

The previous prime is 672239314741. The next prime is 672239314793. The reversal of 672239314789 is 987413932276.

672239314789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 672239314789 - 2²⁷ = 672105097061 is a prime.

It is a super-2 number, since 2×672239314789² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672239314709) 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, 48017093907 + ... + 48017093920.

It is an arithmetic number, because the mean of its divisors is an integer number (192068375656).

Almost surely, 2^672239314789 is an apocalyptic number.

It is an amenable number.

672239314789 is a deficient number, since it is larger than the sum of its proper divisors (96034187835).

672239314789 is an equidigital number, since it uses as much as digits as its factorization.

672239314789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96034187834.

The product of its digits is 27433728, while the sum is 61.

The spelling of 672239314789 in words is "six hundred seventy-two billion, two hundred thirty-nine million, three hundred fourteen thousand, seven hundred eighty-nine".