73990031999 has 16 divisors (see below), whose sum is σ = 83158892544. Its totient is φ = 65318853600.

The previous prime is 73990031963. The next prime is 73990032019. The reversal of 73990031999 is 99913009937.

It is not a de Polignac number, because 73990031999 - 2²⁰ = 73988983423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73990031939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2434004 + ... + 2464214.

It is an arithmetic number, because the mean of its divisors is an integer number (5197430784).

Almost surely, 2^73990031999 is an apocalyptic number.

73990031999 is a deficient number, since it is larger than the sum of its proper divisors (9168860545).

73990031999 is a wasteful number, since it uses less digits than its factorization.

73990031999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38438.

The product of its (nonzero) digits is 3720087, while the sum is 59.

The spelling of 73990031999 in words is "seventy-three billion, nine hundred ninety million, thirty-one thousand, nine hundred ninety-nine".