1255937273856 has 208 divisors, whose sum is σ = 3939720285600. Its totient is φ = 394018947072.

The previous prime is 1255937273831. The next prime is 1255937273861. The reversal of 1255937273856 is 6583727395521.

1255937273856 is a `hidden beast` number, since 1 + 2 + 5 + 593 + 7 + 2 + 7 + 38 + 5 + 6 = 666.

It is a super-2 number, since 2×1255937273856² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1255937273793 and 1255937273802.

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, 1546050 + ... + 2214078.

Almost surely, 2^{1255937273856} is an apocalyptic number.

1255937273856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255937273856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1969860142800).

1255937273856 is an abundant number, since it is smaller than the sum of its proper divisors (2683783011744).

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

1255937273856 is an equidigital number, since it uses as much as digits as its factorization.

1255937273856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668079 (or 668051 counting only the distinct ones).

The product of its digits is 95256000, while the sum is 63.

The spelling of 1255937273856 in words is "one trillion, two hundred fifty-five billion, nine hundred thirty-seven million, two hundred seventy-three thousand, eight hundred fifty-six".