73667387431 has 24 divisors (see below), whose sum is σ = 83304237744. Its totient is φ = 64604279040.

The previous prime is 73667387407. The next prime is 73667387441. The reversal of 73667387431 is 13478376637.

It is not a de Polignac number, because 73667387431 - 2¹¹ = 73667385383 is a prime.

It is a super-2 number, since 2×73667387431² (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 (73667387441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13253905 + ... + 13259461.

It is an arithmetic number, because the mean of its divisors is an integer number (3471009906).

Almost surely, 2^73667387431 is an apocalyptic number.

73667387431 is a deficient number, since it is larger than the sum of its proper divisors (9636850313).

73667387431 is a wasteful number, since it uses less digits than its factorization.

73667387431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059 (or 7030 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 55.

The spelling of 73667387431 in words is "seventy-three billion, six hundred sixty-seven million, three hundred eighty-seven thousand, four hundred thirty-one".