83958163831 has 16 divisors (see below), whose sum is σ = 86697791008. Its totient is φ = 81244425600.

The previous prime is 83958163829. The next prime is 83958163853. The reversal of 83958163831 is 13836185938.

It is a cyclic number.

It is not a de Polignac number, because 83958163831 - 2¹ = 83958163829 is a prime.

It is a super-2 number, since 2×83958163831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83958163031) 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, 5657401 + ... + 5672221.

It is an arithmetic number, because the mean of its divisors is an integer number (5418611938).

Almost surely, 2^83958163831 is an apocalyptic number.

83958163831 is a deficient number, since it is larger than the sum of its proper divisors (2739627177).

83958163831 is a wasteful number, since it uses less digits than its factorization.

83958163831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15682.

The product of its digits is 3732480, while the sum is 55.

The spelling of 83958163831 in words is "eighty-three billion, nine hundred fifty-eight million, one hundred sixty-three thousand, eight hundred thirty-one".