72917462631 has 8 divisors (see below), whose sum is σ = 104701997680. Its totient is φ = 44872284672.

The previous prime is 72917462617. The next prime is 72917462641. The reversal of 72917462631 is 13626471927.

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

It is not a de Polignac number, because 72917462631 - 2¹⁴ = 72917446247 is a prime.

It is a super-2 number, since 2×72917462631² (a number of 23 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 (72917462641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934839226 + ... + 934839303.

It is an arithmetic number, because the mean of its divisors is an integer number (13087749710).

Almost surely, 2^72917462631 is an apocalyptic number.

72917462631 is a deficient number, since it is larger than the sum of its proper divisors (31784535049).

72917462631 is a wasteful number, since it uses less digits than its factorization.

72917462631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869678545.

The product of its digits is 762048, while the sum is 48.

The spelling of 72917462631 in words is "seventy-two billion, nine hundred seventeen million, four hundred sixty-two thousand, six hundred thirty-one".