77044554747117 has 40 divisors (see below), whose sum is σ = 117904077466560. Its totient is φ = 50107846052160.

The previous prime is 77044554747047. The next prime is 77044554747187. The reversal of 77044554747117 is 71174745544077.

77044554747117 is a `hidden beast` number, since 7 + 7 + 0 + 4 + 4 + 5 + 547 + 4 + 71 + 17 = 666.

It is an interprime number because it is at equal distance from previous prime (77044554747047) and next prime (77044554747187).

It is not a de Polignac number, because 77044554747117 - 2¹⁵ = 77044554714349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77044554747187) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 69131734 + ... + 70237352.

It is an arithmetic number, because the mean of its divisors is an integer number (2947601936664).

Almost surely, 2^{77044554747117} is an apocalyptic number.

It is an amenable number.

77044554747117 is a deficient number, since it is larger than the sum of its proper divisors (40859522719443).

77044554747117 is a wasteful number, since it uses less digits than its factorization.

77044554747117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126655 (or 1126646 counting only the distinct ones).

The product of its (nonzero) digits is 107564800, while the sum is 63.

The spelling of 77044554747117 in words is "seventy-seven trillion, forty-four billion, five hundred fifty-four million, seven hundred forty-seven thousand, one hundred seventeen".