117990261919 has 2 divisors, whose sum is σ = 117990261920. Its totient is φ = 117990261918.

The previous prime is 117990261899. The next prime is 117990261923. The reversal of 117990261919 is 919162099711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117990261919 - 2⁷ = 117990261791 is a prime.

It is a super-2 number, since 2×117990261919² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117990261919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117990261979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58995130959 + 58995130960.

It is an arithmetic number, because the mean of its divisors is an integer number (58995130960).

Almost surely, 2^117990261919 is an apocalyptic number.

117990261919 is a deficient number, since it is larger than the sum of its proper divisors (1).

117990261919 is an equidigital number, since it uses as much as digits as its factorization.

117990261919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 55.

The spelling of 117990261919 in words is "one hundred seventeen billion, nine hundred ninety million, two hundred sixty-one thousand, nine hundred nineteen".