77788628863386 has 16 divisors (see below), whose sum is σ = 177802580259264. Its totient is φ = 22225322532384.

The previous prime is 77788628863367. The next prime is 77788628863391. The reversal of 77788628863386 is 68336882688777.

77788628863386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926055105475 + ... + 926055105558.

It is an arithmetic number, because the mean of its divisors is an integer number (11112661266204).

Almost surely, 2^{77788628863386} is an apocalyptic number.

77788628863386 is an abundant number, since it is smaller than the sum of its proper divisors (100013951395878).

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

77788628863386 is a wasteful number, since it uses less digits than its factorization.

77788628863386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852110211045.

The product of its digits is 43698880512, while the sum is 87.

The spelling of 77788628863386 in words is "seventy-seven trillion, seven hundred eighty-eight billion, six hundred twenty-eight million, eight hundred sixty-three thousand, three hundred eighty-six".