117850001779 has 2 divisors, whose sum is σ = 117850001780. Its totient is φ = 117850001778.

The previous prime is 117850001693. The next prime is 117850001821. The reversal of 117850001779 is 977100058711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117850001779 - 2¹¹ = 117849999731 is a prime.

It is not a weakly prime, because it can be changed into another prime (117850002779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58925000889 + 58925000890.

It is an arithmetic number, because the mean of its divisors is an integer number (58925000890).

Almost surely, 2^117850001779 is an apocalyptic number.

117850001779 is a deficient number, since it is larger than the sum of its proper divisors (1).

117850001779 is an equidigital number, since it uses as much as digits as its factorization.

117850001779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 46.

The spelling of 117850001779 in words is "one hundred seventeen billion, eight hundred fifty million, one thousand, seven hundred seventy-nine".