194638814275 has 12 divisors (see below), whose sum is σ = 241360022952. Its totient is φ = 155705959040.

The previous prime is 194638814269. The next prime is 194638814309. The reversal of 194638814275 is 572418836491.

It is not a de Polignac number, because 194638814275 - 2³ = 194638814267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778884 + ... + 997966.

It is an arithmetic number, because the mean of its divisors is an integer number (20113335246).

Almost surely, 2^194638814275 is an apocalyptic number.

194638814275 is a deficient number, since it is larger than the sum of its proper divisors (46721208677).

194638814275 is a wasteful number, since it uses less digits than its factorization.

194638814275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254630 (or 254625 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The spelling of 194638814275 in words is "one hundred ninety-four billion, six hundred thirty-eight million, eight hundred fourteen thousand, two hundred seventy-five".