255682109838 has 32 divisors (see below), whose sum is σ = 525180309120. Its totient is φ = 82953293600.

The previous prime is 255682109827. The next prime is 255682109857. The reversal of 255682109838 is 838901286552.

It is a super-2 number, since 2×255682109838² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3539820 + ... + 3611327.

It is an arithmetic number, because the mean of its divisors is an integer number (16411884660).

Almost surely, 2^255682109838 is an apocalyptic number.

255682109838 is an abundant number, since it is smaller than the sum of its proper divisors (269498199282).

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

255682109838 is a wasteful number, since it uses less digits than its factorization.

255682109838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151312.

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 255682109838 in words is "two hundred fifty-five billion, six hundred eighty-two million, one hundred nine thousand, eight hundred thirty-eight".