791450778 has 16 divisors (see below), whose sum is σ = 1583251776. Its totient is φ = 263758560.

The previous prime is 791450773. The next prime is 791450791. The reversal of 791450778 is 877054197.

791450778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (791450773) 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, 21750 + ... + 45342.

It is an arithmetic number, because the mean of its divisors is an integer number (98953236).

Almost surely, 2^791450778 is an apocalyptic number.

791450778 is an abundant number, since it is smaller than the sum of its proper divisors (791800998).

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

791450778 is a wasteful number, since it uses less digits than its factorization.

791450778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29189.

The product of its (nonzero) digits is 493920, while the sum is 48.

The square root of 791450778 is about 28132.7349896877. The cubic root of 791450778 is about 924.9990856577. Note that the first 3 decimals are identical.

The spelling of 791450778 in words is "seven hundred ninety-one million, four hundred fifty thousand, seven hundred seventy-eight".