76445775777 has 96 divisors (see below), whose sum is σ = 131838136320. Its totient is φ = 39115923840.

The previous prime is 76445775761. The next prime is 76445775799. The reversal of 76445775777 is 77757754467.

It is not a de Polignac number, because 76445775777 - 2⁴ = 76445775761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76445775277) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 3712803 + ... + 3733335.

It is an arithmetic number, because the mean of its divisors is an integer number (1373313920).

Almost surely, 2^76445775777 is an apocalyptic number.

It is an amenable number.

76445775777 is a deficient number, since it is larger than the sum of its proper divisors (55392360543).

76445775777 is a wasteful number, since it uses less digits than its factorization.

76445775777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20643 (or 20636 counting only the distinct ones).

The product of its digits is 282357600, while the sum is 66.

The spelling of 76445775777 in words is "seventy-six billion, four hundred forty-five million, seven hundred seventy-five thousand, seven hundred seventy-seven".