73667700729 has 12 divisors (see below), whose sum is σ = 121610172736. Its totient is φ = 42095828952.

The previous prime is 73667700727. The next prime is 73667700773. The reversal of 73667700729 is 92700776637.

It is a happy number.

It is not a de Polignac number, because 73667700729 - 2¹ = 73667700727 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73667700727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584664229 + ... + 584664354.

Almost surely, 2^73667700729 is an apocalyptic number.

It is an amenable number.

73667700729 is a deficient number, since it is larger than the sum of its proper divisors (47942472007).

73667700729 is a wasteful number, since it uses less digits than its factorization.

73667700729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169328596 (or 1169328593 counting only the distinct ones).

The product of its (nonzero) digits is 4667544, while the sum is 54.

The spelling of 73667700729 in words is "seventy-three billion, six hundred sixty-seven million, seven hundred thousand, seven hundred twenty-nine".