83954641597 has 4 divisors (see below), whose sum is σ = 83966817600. Its totient is φ = 83942465596.

The previous prime is 83954641583. The next prime is 83954641601. The reversal of 83954641597 is 79514645938.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83954641597 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 (83954641567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6077653 + ... + 6091450.

It is an arithmetic number, because the mean of its divisors is an integer number (20991704400).

Almost surely, 2^83954641597 is an apocalyptic number.

It is an amenable number.

83954641597 is a deficient number, since it is larger than the sum of its proper divisors (12176003).

83954641597 is a wasteful number, since it uses less digits than its factorization.

83954641597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12176002.

The product of its digits is 32659200, while the sum is 61.

The spelling of 83954641597 in words is "eighty-three billion, nine hundred fifty-four million, six hundred forty-one thousand, five hundred ninety-seven".