83961808083 has 12 divisors (see below), whose sum is σ = 121288954800. Its totient is φ = 55969559856.

The previous prime is 83961808061. The next prime is 83961808097. The reversal of 83961808083 is 38080816938.

It is a happy number.

It is not a de Polignac number, because 83961808083 - 2¹⁴ = 83961791699 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (83961808003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306616 + ... + 511797.

It is an arithmetic number, because the mean of its divisors is an integer number (10107412900).

Almost surely, 2^83961808083 is an apocalyptic number.

83961808083 is a deficient number, since it is larger than the sum of its proper divisors (37327146717).

83961808083 is a wasteful number, since it uses less digits than its factorization.

83961808083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829818 (or 829815 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 83961808083 in words is "eighty-three billion, nine hundred sixty-one million, eight hundred eight thousand, eighty-three".