73580993949 has 16 divisors (see below), whose sum is σ = 101630108160. Its totient is φ = 47319824640.

The previous prime is 73580993921. The next prime is 73580993999. The reversal of 73580993949 is 94939908537.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-73580993949 is a prime.

It is a super-2 number, since 2×73580993949² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73580993949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73580993999) 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, 3349837 + ... + 3371730.

It is an arithmetic number, because the mean of its divisors is an integer number (6351881760).

Almost surely, 2^73580993949 is an apocalyptic number.

It is an amenable number.

73580993949 is a deficient number, since it is larger than the sum of its proper divisors (28049114211).

73580993949 is a wasteful number, since it uses less digits than its factorization.

73580993949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721700.

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 73580993949 in words is "seventy-three billion, five hundred eighty million, nine hundred ninety-three thousand, nine hundred forty-nine".