76777377770 has 16 divisors (see below), whose sum is σ = 141569994888. Its totient is φ = 29961903360.

The previous prime is 76777377769. The next prime is 76777377827. The reversal of 76777377770 is 7777377767.

It can be written as a sum of positive squares in 4 ways, for example, as 40021202809 + 36756174961 = 200053^2 + 191719^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76777377697 and 76777377706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93630539 + ... + 93631358.

Almost surely, 2^76777377770 is an apocalyptic number.

76777377770 is a deficient number, since it is larger than the sum of its proper divisors (64792617118).

76777377770 is a wasteful number, since it uses less digits than its factorization.

76777377770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187261945.

The product of its (nonzero) digits is 103766418, while the sum is 65.

The spelling of 76777377770 in words is "seventy-six billion, seven hundred seventy-seven million, three hundred seventy-seven thousand, seven hundred seventy".