73018380959 has 4 divisors (see below), whose sum is σ = 73083057360. Its totient is φ = 72953704560.

The previous prime is 73018380949. The next prime is 73018380973. The reversal of 73018380959 is 95908381037.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73018380959 - 2⁸ = 73018380703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73018380959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73018380949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32336507 + ... + 32338764.

It is an arithmetic number, because the mean of its divisors is an integer number (18270764340).

Almost surely, 2^73018380959 is an apocalyptic number.

73018380959 is a deficient number, since it is larger than the sum of its proper divisors (64676401).

73018380959 is a wasteful number, since it uses less digits than its factorization.

73018380959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64676400.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 73018380959 in words is "seventy-three billion, eighteen million, three hundred eighty thousand, nine hundred fifty-nine".