73667036671 has 4 divisors (see below), whose sum is σ = 73715155144. Its totient is φ = 73618918200.

The previous prime is 73667036629. The next prime is 73667036693. The reversal of 73667036671 is 17663076637.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17663076637 = 45281 ⋅390077.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73667036671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73667036171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24056940 + ... + 24060001.

It is an arithmetic number, because the mean of its divisors is an integer number (18428788786).

Almost surely, 2^73667036671 is an apocalyptic number.

73667036671 is a deficient number, since it is larger than the sum of its proper divisors (48118473).

73667036671 is a wasteful number, since it uses less digits than its factorization.

73667036671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48118472.

The product of its (nonzero) digits is 4000752, while the sum is 52.

The spelling of 73667036671 in words is "seventy-three billion, six hundred sixty-seven million, thirty-six thousand, six hundred seventy-one".