778054670412 has 24 divisors (see below), whose sum is σ = 1835859337200. Its totient is φ = 256437494016.

The previous prime is 778054670411. The next prime is 778054670431. The reversal of 778054670412 is 214076450877.

It is not an unprimeable number, because it can be changed into a prime (778054670411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364256737 + ... + 364258872.

It is an arithmetic number, because the mean of its divisors is an integer number (76494139050).

Almost surely, 2^778054670412 is an apocalyptic number.

It is an amenable number.

778054670412 is an abundant number, since it is smaller than the sum of its proper divisors (1057804666788).

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

778054670412 is a wasteful number, since it uses less digits than its factorization.

778054670412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728515705 (or 728515703 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 51.

The spelling of 778054670412 in words is "seven hundred seventy-eight billion, fifty-four million, six hundred seventy thousand, four hundred twelve".