255154743940 has 12 divisors (see below), whose sum is σ = 535824962316. Its totient is φ = 102061897568.

The previous prime is 255154743887. The next prime is 255154743941. The reversal of 255154743940 is 49347451552.

It can be written as a sum of positive squares in 2 ways, for example, as 69883037316 + 185271706624 = 264354^2 + 430432^2 .

It is not an unprimeable number, because it can be changed into a prime (255154743941) 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 3 ways as a sum of consecutive naturals, for example, 6378868579 + ... + 6378868618.

It is an arithmetic number, because the mean of its divisors is an integer number (44652080193).

Almost surely, 2^255154743940 is an apocalyptic number.

255154743940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255154743940 is an abundant number, since it is smaller than the sum of its proper divisors (280670218376).

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

255154743940 is a wasteful number, since it uses less digits than its factorization.

255154743940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12757737206 (or 12757737204 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 49.

The spelling of 255154743940 in words is "two hundred fifty-five billion, one hundred fifty-four million, seven hundred forty-three thousand, nine hundred forty".