188412995479 has 2 divisors, whose sum is σ = 188412995480. Its totient is φ = 188412995478.

The previous prime is 188412995371. The next prime is 188412995543. The reversal of 188412995479 is 974599214881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 188412995479 - 2²¹ = 188410898327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188412995179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94206497739 + 94206497740.

It is an arithmetic number, because the mean of its divisors is an integer number (94206497740).

Almost surely, 2^188412995479 is an apocalyptic number.

188412995479 is a deficient number, since it is larger than the sum of its proper divisors (1).

188412995479 is an equidigital number, since it uses as much as digits as its factorization.

188412995479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 67.

The spelling of 188412995479 in words is "one hundred eighty-eight billion, four hundred twelve million, nine hundred ninety-five thousand, four hundred seventy-nine".