188000988979 has 2 divisors, whose sum is σ = 188000988980. Its totient is φ = 188000988978.

The previous prime is 188000988941. The next prime is 188000988991. The reversal of 188000988979 is 979889000881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 188000988979 - 2¹³ = 188000980787 is a prime.

It is not a weakly prime, because it can be changed into another prime (188000988079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94000494489 + 94000494490.

It is an arithmetic number, because the mean of its divisors is an integer number (94000494490).

Almost surely, 2^188000988979 is an apocalyptic number.

188000988979 is a deficient number, since it is larger than the sum of its proper divisors (1).

188000988979 is an equidigital number, since it uses as much as digits as its factorization.

188000988979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 67.

The spelling of 188000988979 in words is "one hundred eighty-eight billion, nine hundred eighty-eight thousand, nine hundred seventy-nine".