117578407672987 has 2 divisors, whose sum is σ = 117578407672988. Its totient is φ = 117578407672986.

The previous prime is 117578407672969. The next prime is 117578407673003. The reversal of 117578407672987 is 789276704875711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117578407672987 - 2³⁵ = 117544047934619 is a prime.

It is not a weakly prime, because it can be changed into another prime (117578407672387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58789203836493 + 58789203836494.

It is an arithmetic number, because the mean of its divisors is an integer number (58789203836494).

Almost surely, 2^{117578407672987} is an apocalyptic number.

117578407672987 is a deficient number, since it is larger than the sum of its proper divisors (1).

117578407672987 is an equidigital number, since it uses as much as digits as its factorization.

117578407672987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2323399680, while the sum is 79.

The spelling of 117578407672987 in words is "one hundred seventeen trillion, five hundred seventy-eight billion, four hundred seven million, six hundred seventy-two thousand, nine hundred eighty-seven".