778754068 has 12 divisors (see below), whose sum is σ = 1364362272. Its totient is φ = 388936280.

The previous prime is 778754051. The next prime is 778754099. The reversal of 778754068 is 860457877.

It is a congruent number.

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, 106198 + ... + 113293.

It is an arithmetic number, because the mean of its divisors is an integer number (113696856).

Almost surely, 2^778754068 is an apocalyptic number.

It is an amenable number.

778754068 is a deficient number, since it is larger than the sum of its proper divisors (585608204).

778754068 is a wasteful number, since it uses less digits than its factorization.

778754068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220382 (or 220380 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 52.

The square root of 778754068 is about 27906.1654119659. The cubic root of 778754068 is about 920.0260184828.

The spelling of 778754068 in words is "seven hundred seventy-eight million, seven hundred fifty-four thousand, sixty-eight".