72631687839 has 8 divisors (see below), whose sum is σ = 97840624560. Its totient is φ = 47921938176.

The previous prime is 72631687837. The next prime is 72631687853. The reversal of 72631687839 is 93878613627.

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

It is not a de Polignac number, because 72631687839 - 2¹ = 72631687837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72631687837) 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, 124796424 + ... + 124797005.

It is an arithmetic number, because the mean of its divisors is an integer number (12230078070).

Almost surely, 2^72631687839 is an apocalyptic number.

72631687839 is a deficient number, since it is larger than the sum of its proper divisors (25208936721).

72631687839 is a wasteful number, since it uses less digits than its factorization.

72631687839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249593529.

The product of its digits is 18289152, while the sum is 60.

The spelling of 72631687839 in words is "seventy-two billion, six hundred thirty-one million, six hundred eighty-seven thousand, eight hundred thirty-nine".