778950795 has 96 divisors (see below), whose sum is σ = 1585391616. Its totient is φ = 324172800.

The previous prime is 778950791. The next prime is 778950797. The reversal of 778950795 is 597059877.

It is not a de Polignac number, because 778950795 - 2² = 778950791 is a prime.

It is a super-2 number, since 2×778950795² = 1213528682062264050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (778950791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 386340 + ... + 388350.

It is an arithmetic number, because the mean of its divisors is an integer number (16514496).

Almost surely, 2^778950795 is an apocalyptic number.

778950795 is an abundant number, since it is smaller than the sum of its proper divisors (806440821).

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

778950795 is a wasteful number, since it uses less digits than its factorization.

778950795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 5556600, while the sum is 57.

The square root of 778950795 is about 27909.6899839464. The cubic root of 778950795 is about 920.1034835549.

The spelling of 778950795 in words is "seven hundred seventy-eight million, nine hundred fifty thousand, seven hundred ninety-five".