778679052 has 48 divisors (see below), whose sum is σ = 1959216000. Its totient is φ = 239898240.

The previous prime is 778679047. The next prime is 778679089. The reversal of 778679052 is 250976877.

778679052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 778678986 and 778679004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32302 + ... + 50997.

It is an arithmetic number, because the mean of its divisors is an integer number (40817000).

Almost surely, 2^778679052 is an apocalyptic number.

It is an amenable number.

778679052 is an abundant number, since it is smaller than the sum of its proper divisors (1180536948).

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

778679052 is a wasteful number, since it uses less digits than its factorization.

778679052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83366 (or 83364 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 51.

The square root of 778679052 is about 27904.8213038536. The cubic root of 778679052 is about 919.9964760420.

The spelling of 778679052 in words is "seven hundred seventy-eight million, six hundred seventy-nine thousand, fifty-two".