774234106778 has 16 divisors (see below), whose sum is σ = 1269530051904. Its totient is φ = 351201951360.

The previous prime is 774234106687. The next prime is 774234106783. The reversal of 774234106778 is 877601432477.

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, 36121175 + ... + 36142602.

It is an arithmetic number, because the mean of its divisors is an integer number (79345628244).

Almost surely, 2^774234106778 is an apocalyptic number.

774234106778 is a deficient number, since it is larger than the sum of its proper divisors (495295945126).

774234106778 is a wasteful number, since it uses less digits than its factorization.

774234106778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72264277.

The product of its (nonzero) digits is 11063808, while the sum is 56.

The spelling of 774234106778 in words is "seven hundred seventy-four billion, two hundred thirty-four million, one hundred six thousand, seven hundred seventy-eight".