73573679739 has 16 divisors (see below), whose sum is σ = 114012483840. Its totient is φ = 41329524000.

The previous prime is 73573679719. The next prime is 73573679797. The reversal of 73573679739 is 93797637537.

It is a happy number.

It is not a de Polignac number, because 73573679739 - 2⁷ = 73573679611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73573679739.

It is not an unprimeable number, because it can be changed into a prime (73573679719) 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, 29689512 + ... + 29691989.

It is an arithmetic number, because the mean of its divisors is an integer number (7125780240).

Almost surely, 2^73573679739 is an apocalyptic number.

73573679739 is a deficient number, since it is larger than the sum of its proper divisors (40438804101).

73573679739 is a wasteful number, since it uses less digits than its factorization.

73573679739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59381570.

The product of its digits is 157529610, while the sum is 66.

The spelling of 73573679739 in words is "seventy-three billion, five hundred seventy-three million, six hundred seventy-nine thousand, seven hundred thirty-nine".