119977557569 has 2 divisors, whose sum is σ = 119977557570. Its totient is φ = 119977557568.

The previous prime is 119977557563. The next prime is 119977557593. The reversal of 119977557569 is 965755779911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69661684225 + 50315873344 = 263935^2 + 224312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-119977557569 is a prime.

It is a super-2 number, since 2×119977557569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (119977557563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59988778784 + 59988778785.

It is an arithmetic number, because the mean of its divisors is an integer number (59988778785).

Almost surely, 2^119977557569 is an apocalyptic number.

It is an amenable number.

119977557569 is a deficient number, since it is larger than the sum of its proper divisors (1).

119977557569 is an equidigital number, since it uses as much as digits as its factorization.

119977557569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 187535250, while the sum is 71.

The spelling of 119977557569 in words is "one hundred nineteen billion, nine hundred seventy-seven million, five hundred fifty-seven thousand, five hundred sixty-nine".