77367111049 has 2 divisors, whose sum is σ = 77367111050. Its totient is φ = 77367111048.

The previous prime is 77367111023. The next prime is 77367111113. The reversal of 77367111049 is 94011176377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77266209024 + 100902025 = 277968^2 + 10045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77367111049 is a prime.

It is not a weakly prime, because it can be changed into another prime (77367111449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38683555524 + 38683555525.

It is an arithmetic number, because the mean of its divisors is an integer number (38683555525).

Almost surely, 2^77367111049 is an apocalyptic number.

It is an amenable number.

77367111049 is a deficient number, since it is larger than the sum of its proper divisors (1).

77367111049 is an equidigital number, since it uses as much as digits as its factorization.

77367111049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 46.

The spelling of 77367111049 in words is "seventy-seven billion, three hundred sixty-seven million, one hundred eleven thousand, forty-nine".