1255954139260 has 24 divisors (see below), whose sum is σ = 2639130844896. Its totient is φ = 502071721920.

The previous prime is 1255954139207. The next prime is 1255954139281. The reversal of 1255954139260 is 629314595521.

It is a junction number, because it is equal to n+sod(n) for n = 1255954139198 and 1255954139207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19337632 + ... + 19402471.

It is an arithmetic number, because the mean of its divisors is an integer number (109963785204).

Almost surely, 2^{1255954139260} is an apocalyptic number.

1255954139260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255954139260 is an abundant number, since it is smaller than the sum of its proper divisors (1383176705636).

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

1255954139260 is a wasteful number, since it uses less digits than its factorization.

1255954139260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38741733 (or 38741731 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 52.

The spelling of 1255954139260 in words is "one trillion, two hundred fifty-five billion, nine hundred fifty-four million, one hundred thirty-nine thousand, two hundred sixty".