76777143344 has 20 divisors (see below), whose sum is σ = 162278962440. Its totient is φ = 34898701440.

The previous prime is 76777143319. The next prime is 76777143347. The reversal of 76777143344 is 44334177767.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (76777143347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218116709 + ... + 218117060.

It is an arithmetic number, because the mean of its divisors is an integer number (8113948122).

Almost surely, 2^76777143344 is an apocalyptic number.

It is an amenable number.

76777143344 is an abundant number, since it is smaller than the sum of its proper divisors (85501819096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76777143344 is a wasteful number, since it uses less digits than its factorization.

76777143344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436233788 (or 436233782 counting only the distinct ones).

The product of its digits is 8297856, while the sum is 53.

The spelling of 76777143344 in words is "seventy-six billion, seven hundred seventy-seven million, one hundred forty-three thousand, three hundred forty-four".