791053778 has 8 divisors (see below), whose sum is σ = 1190804220. Its totient is φ = 394119040.

The previous prime is 791053723. The next prime is 791053807. The reversal of 791053778 is 877350197.

791053778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 734247409 + 56806369 = 27097^2 + 7537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 703223 + ... + 704346.

Almost surely, 2^791053778 is an apocalyptic number.

791053778 is a deficient number, since it is larger than the sum of its proper divisors (399750442).

791053778 is a wasteful number, since it uses less digits than its factorization.

791053778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407852.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 791053778 is about 28125.6782673769. The cubic root of 791053778 is about 924.8443967137.

The spelling of 791053778 in words is "seven hundred ninety-one million, fifty-three thousand, seven hundred seventy-eight".