77781047114444 has 12 divisors (see below), whose sum is σ = 139012935268704. Its totient is φ = 38063065609104.

The previous prime is 77781047114423. The next prime is 77781047114467. The reversal of 77781047114444 is 44441174018777.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206864486819 + ... + 206864487194.

It is an arithmetic number, because the mean of its divisors is an integer number (11584411272392).

Almost surely, 2^{77781047114444} is an apocalyptic number.

It is an amenable number.

77781047114444 is a deficient number, since it is larger than the sum of its proper divisors (61231888154260).

77781047114444 is a wasteful number, since it uses less digits than its factorization.

77781047114444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413728974064 (or 413728974062 counting only the distinct ones).

The product of its (nonzero) digits is 19668992, while the sum is 59.

The spelling of 77781047114444 in words is "seventy-seven trillion, seven hundred eighty-one billion, forty-seven million, one hundred fourteen thousand, four hundred forty-four".