73897173692 has 12 divisors (see below), whose sum is σ = 129932946696. Its totient is φ = 36773474640.

The previous prime is 73897173653. The next prime is 73897173719. The reversal of 73897173692 is 29637179837.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43777103 + ... + 43778790.

It is an arithmetic number, because the mean of its divisors is an integer number (10827745558).

Almost surely, 2^73897173692 is an apocalyptic number.

It is an amenable number.

73897173692 is a deficient number, since it is larger than the sum of its proper divisors (56035773004).

73897173692 is a wasteful number, since it uses less digits than its factorization.

73897173692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87556108 (or 87556106 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 62.

The spelling of 73897173692 in words is "seventy-three billion, eight hundred ninety-seven million, one hundred seventy-three thousand, six hundred ninety-two".