197390893875 has 32 divisors (see below), whose sum is σ = 375381087744. Its totient is φ = 90235836000.

The previous prime is 197390893841. The next prime is 197390893879. The reversal of 197390893875 is 578398093791.

It is not a de Polignac number, because 197390893875 - 2¹⁰ = 197390892851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197390893879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37595641 + ... + 37600890.

It is an arithmetic number, because the mean of its divisors is an integer number (11730658992).

Almost surely, 2^197390893875 is an apocalyptic number.

197390893875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

197390893875 is a deficient number, since it is larger than the sum of its proper divisors (177990193869).

197390893875 is an equidigital number, since it uses as much as digits as its factorization.

197390893875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75196556 (or 75196546 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 69.

The spelling of 197390893875 in words is "one hundred ninety-seven billion, three hundred ninety million, eight hundred ninety-three thousand, eight hundred seventy-five".