73315981347 has 16 divisors (see below), whose sum is σ = 114444460032. Its totient is φ = 40873020480.

The previous prime is 73315981327. The next prime is 73315981357. The reversal of 73315981347 is 74318951337.

It is a happy number.

It is not a de Polignac number, because 73315981347 - 2¹⁰ = 73315980323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73315981347.

It is not an unprimeable number, because it can be changed into a prime (73315981307) 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, 42575203 + ... + 42576924.

It is an arithmetic number, because the mean of its divisors is an integer number (7152778752).

Almost surely, 2^73315981347 is an apocalyptic number.

73315981347 is a deficient number, since it is larger than the sum of its proper divisors (41128478685).

73315981347 is a wasteful number, since it uses less digits than its factorization.

73315981347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85152178.

The product of its digits is 1905120, while the sum is 51.

The spelling of 73315981347 in words is "seventy-three billion, three hundred fifteen million, nine hundred eighty-one thousand, three hundred forty-seven".