117654963779 has 2 divisors, whose sum is σ = 117654963780. Its totient is φ = 117654963778.

The previous prime is 117654963773. The next prime is 117654963817. The reversal of 117654963779 is 977369456711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117654963779 - 2⁴ = 117654963763 is a prime.

It is not a weakly prime, because it can be changed into another prime (117654963773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58827481889 + 58827481890.

It is an arithmetic number, because the mean of its divisors is an integer number (58827481890).

Almost surely, 2^117654963779 is an apocalyptic number.

117654963779 is a deficient number, since it is larger than the sum of its proper divisors (1).

117654963779 is an equidigital number, since it uses as much as digits as its factorization.

117654963779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60011280, while the sum is 65.

The spelling of 117654963779 in words is "one hundred seventeen billion, six hundred fifty-four million, nine hundred sixty-three thousand, seven hundred seventy-nine".