255054798691 has 16 divisors (see below), whose sum is σ = 318189669120. Its totient is φ = 198619454880.

The previous prime is 255054798641. The next prime is 255054798727. The reversal of 255054798691 is 196897450552.

It is not a de Polignac number, because 255054798691 - 2⁷ = 255054798563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255054798601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914101 + ... + 1160038.

It is an arithmetic number, because the mean of its divisors is an integer number (19886854320).

Almost surely, 2^255054798691 is an apocalyptic number.

255054798691 is a deficient number, since it is larger than the sum of its proper divisors (63134870429).

255054798691 is a wasteful number, since it uses less digits than its factorization.

255054798691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075754.

The product of its (nonzero) digits is 27216000, while the sum is 61.

The spelling of 255054798691 in words is "two hundred fifty-five billion, fifty-four million, seven hundred ninety-eight thousand, six hundred ninety-one".