255839791946 has 8 divisors (see below), whose sum is σ = 384071945220. Its totient is φ = 127815810208.

The previous prime is 255839791901. The next prime is 255839791981. The reversal of 255839791946 is 649197938552.

It can be written as a sum of positive squares in 2 ways, for example, as 209224822921 + 46614969025 = 457411^2 + 215905^2 .

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

It is a Curzon number.

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, 52039811 + ... + 52044726.

Almost surely, 2^255839791946 is an apocalyptic number.

255839791946 is a deficient number, since it is larger than the sum of its proper divisors (128232153274).

255839791946 is a wasteful number, since it uses less digits than its factorization.

255839791946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104085768.

The product of its digits is 146966400, while the sum is 68.

The spelling of 255839791946 in words is "two hundred fifty-five billion, eight hundred thirty-nine million, seven hundred ninety-one thousand, nine hundred forty-six".