194211902975 has 6 divisors (see below), whose sum is σ = 240822759720. Its totient is φ = 155369522360.

The previous prime is 194211902953. The next prime is 194211902977. The reversal of 194211902975 is 579209112491.

It is not a de Polignac number, because 194211902975 - 2²⁸ = 193943467519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194211902977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3884238035 + ... + 3884238084.

It is an arithmetic number, because the mean of its divisors is an integer number (40137126620).

Almost surely, 2^194211902975 is an apocalyptic number.

194211902975 is a deficient number, since it is larger than the sum of its proper divisors (46610856745).

194211902975 is an equidigital number, since it uses as much as digits as its factorization.

194211902975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768476129 (or 7768476124 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 50.

The spelling of 194211902975 in words is "one hundred ninety-four billion, two hundred eleven million, nine hundred two thousand, nine hundred seventy-five".