73171640804 has 24 divisors (see below), whose sum is σ = 129198397440. Its totient is φ = 36258437376.

The previous prime is 73171640797. The next prime is 73171640809. The reversal of 73171640804 is 40804617137.

It is not an unprimeable number, because it can be changed into a prime (73171640809) 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, 394409 + ... + 549455.

It is an arithmetic number, because the mean of its divisors is an integer number (5383266560).

Almost surely, 2^73171640804 is an apocalyptic number.

It is an amenable number.

73171640804 is a deficient number, since it is larger than the sum of its proper divisors (56026756636).

73171640804 is a wasteful number, since it uses less digits than its factorization.

73171640804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156107 (or 156105 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 73171640804 in words is "seventy-three billion, one hundred seventy-one million, six hundred forty thousand, eight hundred four".