73317790920 has 128 divisors (see below), whose sum is σ = 250381808640. Its totient is φ = 17001219840.

The previous prime is 73317790913. The next prime is 73317790963. The reversal of 73317790920 is 2909771337.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 73317790920.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1177114 + ... + 1237833.

It is an arithmetic number, because the mean of its divisors is an integer number (1956107880).

Almost surely, 2^73317790920 is an apocalyptic number.

It is an amenable number.

73317790920 is an abundant number, since it is smaller than the sum of its proper divisors (177064017720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73317790920 is a wasteful number, since it uses less digits than its factorization.

73317790920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414995 (or 2414991 counting only the distinct ones).

The product of its (nonzero) digits is 500094, while the sum is 48.

The spelling of 73317790920 in words is "seventy-three billion, three hundred seventeen million, seven hundred ninety thousand, nine hundred twenty".