117634154987 has 2 divisors, whose sum is σ = 117634154988. Its totient is φ = 117634154986.

The previous prime is 117634154969. The next prime is 117634155011. The reversal of 117634154987 is 789451436711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117634154987 - 2¹² = 117634150891 is a prime.

It is not a weakly prime, because it can be changed into another prime (117634154917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58817077493 + 58817077494.

It is an arithmetic number, because the mean of its divisors is an integer number (58817077494).

Almost surely, 2^117634154987 is an apocalyptic number.

117634154987 is a deficient number, since it is larger than the sum of its proper divisors (1).

117634154987 is an equidigital number, since it uses as much as digits as its factorization.

117634154987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 56.

The spelling of 117634154987 in words is "one hundred seventeen billion, six hundred thirty-four million, one hundred fifty-four thousand, nine hundred eighty-seven".