194957875823 has 8 divisors (see below), whose sum is σ = 200373317520. Its totient is φ = 189688694760.

The previous prime is 194957875787. The next prime is 194957875883. The reversal of 194957875823 is 328578759491.

It is not a de Polignac number, because 194957875823 - 2¹⁸ = 194957613679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194957875883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1873793 + ... + 1975098.

It is an arithmetic number, because the mean of its divisors is an integer number (25046664690).

Almost surely, 2^194957875823 is an apocalyptic number.

194957875823 is a deficient number, since it is larger than the sum of its proper divisors (5415441697).

194957875823 is an frugal number, since it uses more digits than its factorization.

194957875823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849002 (or 3848928 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 68.

The spelling of 194957875823 in words is "one hundred ninety-four billion, nine hundred fifty-seven million, eight hundred seventy-five thousand, eight hundred twenty-three".