83653497873 has 20 divisors (see below), whose sum is σ = 136324220208. Its totient is φ = 50699089080.

The previous prime is 83653497857. The next prime is 83653497887. The reversal of 83653497873 is 37879435638.

83653497873 is a `hidden beast` number, since 8 + 3 + 6 + 534 + 97 + 8 + 7 + 3 = 666.

It is not a de Polignac number, because 83653497873 - 2⁴ = 83653497857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83653497873.

It is not an unprimeable number, because it can be changed into a prime (83653497773) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46942711 + ... + 46944492.

Almost surely, 2^83653497873 is an apocalyptic number.

It is an amenable number.

83653497873 is a deficient number, since it is larger than the sum of its proper divisors (52670722335).

83653497873 is a wasteful number, since it uses less digits than its factorization.

83653497873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93887226 (or 93887217 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 83653497873 in words is "eighty-three billion, six hundred fifty-three million, four hundred ninety-seven thousand, eight hundred seventy-three".