672508635428531 has 8 divisors (see below), whose sum is σ = 765543426891264. Its totient is φ = 584790117763720.

The previous prime is 672508635428527. The next prime is 672508635428537. The reversal of 672508635428531 is 135824536805276.

It is a happy number.

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

It is not a de Polignac number, because 672508635428531 - 2² = 672508635428527 is a prime.

It is a super-2 number, since 2×672508635428531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672508635428537) 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, 1329068449211 + ... + 1329068449716.

It is an arithmetic number, because the mean of its divisors is an integer number (95692928361408).

Almost surely, 2^{672508635428531} is an apocalyptic number.

672508635428531 is a deficient number, since it is larger than the sum of its proper divisors (93034791462733).

672508635428531 is a wasteful number, since it uses less digits than its factorization.

672508635428531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658136898961.

The product of its (nonzero) digits is 290304000, while the sum is 65.

The spelling of 672508635428531 in words is "six hundred seventy-two trillion, five hundred eight billion, six hundred thirty-five million, four hundred twenty-eight thousand, five hundred thirty-one".