73890724163 has 16 divisors (see below), whose sum is σ = 79376613120. Its totient is φ = 68603410656.

The previous prime is 73890724153. The next prime is 73890724181. The reversal of 73890724163 is 36142709837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73890724163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73890724123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252956 + ... + 460182.

It is an arithmetic number, because the mean of its divisors is an integer number (4961038320).

Almost surely, 2^73890724163 is an apocalyptic number.

73890724163 is a deficient number, since it is larger than the sum of its proper divisors (5485888957).

73890724163 is a wasteful number, since it uses less digits than its factorization.

73890724163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207706.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 73890724163 in words is "seventy-three billion, eight hundred ninety million, seven hundred twenty-four thousand, one hundred sixty-three".