83969018194 has 128 divisors (see below), whose sum is σ = 144027072000. Its totient is φ = 36562606080.

The previous prime is 83969018191. The next prime is 83969018197. The reversal of 83969018194 is 49181096938.

It is an interprime number because it is at equal distance from previous prime (83969018191) and next prime (83969018197).

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (83969018191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 240598732 + ... + 240599080.

It is an arithmetic number, because the mean of its divisors is an integer number (1125211500).

Almost surely, 2^83969018194 is an apocalyptic number.

83969018194 is a deficient number, since it is larger than the sum of its proper divisors (60058053806).

83969018194 is a wasteful number, since it uses less digits than its factorization.

83969018194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its (nonzero) digits is 3359232, while the sum is 58.

The spelling of 83969018194 in words is "eighty-three billion, nine hundred sixty-nine million, eighteen thousand, one hundred ninety-four".