83996351999 has 16 divisors (see below), whose sum is σ = 99325677120. Its totient is φ = 69500471040.

The previous prime is 83996351947. The next prime is 83996352029. The reversal of 83996351999 is 99915369938.

It is not a de Polignac number, because 83996351999 - 2⁸ = 83996351743 is a prime.

It is a super-2 number, since 2×83996351999² (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 (83996351099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060619 + ... + 1137059.

It is an arithmetic number, because the mean of its divisors is an integer number (6207854820).

Almost surely, 2^83996351999 is an apocalyptic number.

83996351999 is a deficient number, since it is larger than the sum of its proper divisors (15329325121).

83996351999 is a wasteful number, since it uses less digits than its factorization.

83996351999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81890.

The product of its digits is 127545840, while the sum is 71.

The spelling of 83996351999 in words is "eighty-three billion, nine hundred ninety-six million, three hundred fifty-one thousand, nine hundred ninety-nine".