73217001840312 has 128 divisors (see below), whose sum is σ = 215873224646400. Its totient is φ = 20451147494400.

The previous prime is 73217001840289. The next prime is 73217001840347. The reversal of 73217001840312 is 21304810071237.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197066989 + ... + 197438172.

It is an arithmetic number, because the mean of its divisors is an integer number (1686509567550).

Almost surely, 2^{73217001840312} is an apocalyptic number.

It is an amenable number.

73217001840312 is an abundant number, since it is smaller than the sum of its proper divisors (142656222806088).

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

73217001840312 is a wasteful number, since it uses less digits than its factorization.

73217001840312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394505237 (or 394505233 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 73217001840312 in words is "seventy-three trillion, two hundred seventeen billion, one million, eight hundred forty thousand, three hundred twelve".