77773374117 has 24 divisors (see below), whose sum is σ = 115247589600. Its totient is φ = 50512841568.

The previous prime is 77773374061. The next prime is 77773374131. The reversal of 77773374117 is 71147337777.

It is not a de Polignac number, because 77773374117 - 2¹¹ = 77773372069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77773374157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107767 + ... + 408852.

It is an arithmetic number, because the mean of its divisors is an integer number (4801982900).

Almost surely, 2^77773374117 is an apocalyptic number.

It is an amenable number.

77773374117 is a deficient number, since it is larger than the sum of its proper divisors (37474215483).

77773374117 is a wasteful number, since it uses less digits than its factorization.

77773374117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517057 (or 517054 counting only the distinct ones).

The product of its digits is 4235364, while the sum is 54.

The spelling of 77773374117 in words is "seventy-seven billion, seven hundred seventy-three million, three hundred seventy-four thousand, one hundred seventeen".