76899995189 has 2 divisors, whose sum is σ = 76899995190. Its totient is φ = 76899995188.

The previous prime is 76899995167. The next prime is 76899995209. The reversal of 76899995189 is 98159999867.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66637292164 + 10262703025 = 258142^2 + 101305^2 .

It is a cyclic number.

It is not a de Polignac number, because 76899995189 - 2⁸ = 76899994933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76899995149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38449997594 + 38449997595.

It is an arithmetic number, because the mean of its divisors is an integer number (38449997595).

Almost surely, 2^76899995189 is an apocalyptic number.

It is an amenable number.

76899995189 is a deficient number, since it is larger than the sum of its proper divisors (1).

76899995189 is an equidigital number, since it uses as much as digits as its factorization.

76899995189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793618560, while the sum is 80.

The spelling of 76899995189 in words is "seventy-six billion, eight hundred ninety-nine million, nine hundred ninety-five thousand, one hundred eighty-nine".