255429974695 has 32 divisors (see below), whose sum is σ = 357046755840. Its totient is φ = 171794014080.

The previous prime is 255429974647. The next prime is 255429974699. The reversal of 255429974695 is 596479924552.

It is not a de Polignac number, because 255429974695 - 2⁷ = 255429974567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255429974695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255429974699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775185 + ... + 1054405.

It is an arithmetic number, because the mean of its divisors is an integer number (11157711120).

Almost surely, 2^255429974695 is an apocalyptic number.

255429974695 is a deficient number, since it is larger than the sum of its proper divisors (101616781145).

255429974695 is a wasteful number, since it uses less digits than its factorization.

255429974695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279735.

The product of its digits is 244944000, while the sum is 67.

The spelling of 255429974695 in words is "two hundred fifty-five billion, four hundred twenty-nine million, nine hundred seventy-four thousand, six hundred ninety-five".