83572689397 has 8 divisors (see below), whose sum is σ = 83735275680. Its totient is φ = 83410230480.

The previous prime is 83572689379. The next prime is 83572689437. The reversal of 83572689397 is 79398627538.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83572689397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83572689377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1338558 + ... + 1399600.

It is an arithmetic number, because the mean of its divisors is an integer number (10466909460).

Almost surely, 2^83572689397 is an apocalyptic number.

It is an amenable number.

83572689397 is a deficient number, since it is larger than the sum of its proper divisors (162586283).

83572689397 is a wasteful number, since it uses less digits than its factorization.

83572689397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63683.

The product of its digits is 137168640, while the sum is 67.

The spelling of 83572689397 in words is "eighty-three billion, five hundred seventy-two million, six hundred eighty-nine thousand, three hundred ninety-seven".