672708821431 has 8 divisors (see below), whose sum is σ = 712571770944. Its totient is φ = 632878298880.

The previous prime is 672708821401. The next prime is 672708821441. The reversal of 672708821431 is 134128807276.

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

It is a cyclic number.

It is not a de Polignac number, because 672708821431 - 2⁵ = 672708821399 is a prime.

It is a super-2 number, since 2×672708821431² (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 (672708821401) 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, 8064015 + ... + 8147008.

It is an arithmetic number, because the mean of its divisors is an integer number (89071471368).

Almost surely, 2^672708821431 is an apocalyptic number.

672708821431 is a deficient number, since it is larger than the sum of its proper divisors (39862949513).

672708821431 is a wasteful number, since it uses less digits than its factorization.

672708821431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16213481.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 672708821431 in words is "six hundred seventy-two billion, seven hundred eight million, eight hundred twenty-one thousand, four hundred thirty-one".