189920193875 has 16 divisors (see below), whose sum is σ = 237046305600. Its totient is φ = 151919550400.

The previous prime is 189920193851. The next prime is 189920193899. The reversal of 189920193875 is 578391029981.

It is an interprime number because it is at equal distance from previous prime (189920193851) and next prime (189920193899).

It is not a de Polignac number, because 189920193875 - 2¹⁰ = 189920192851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1136711 + ... + 1293039.

It is an arithmetic number, because the mean of its divisors is an integer number (14815394100).

Almost surely, 2^189920193875 is an apocalyptic number.

189920193875 is a deficient number, since it is larger than the sum of its proper divisors (47126111725).

189920193875 is an equidigital number, since it uses as much as digits as its factorization.

189920193875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166063 (or 166053 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 62.

The spelling of 189920193875 in words is "one hundred eighty-nine billion, nine hundred twenty million, one hundred ninety-three thousand, eight hundred seventy-five".