1255813334780 has 48 divisors (see below), whose sum is σ = 2713491199776. Its totient is φ = 487845400320.

The previous prime is 1255813334777. The next prime is 1255813334807. The reversal of 1255813334780 is 874333185521.

It is a super-2 number, since 2×1255813334780² (a number of 25 digits) contains 22 as substring.

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, 1168094 + ... + 1968773.

It is an arithmetic number, because the mean of its divisors is an integer number (56531066662).

Almost surely, 2^{1255813334780} is an apocalyptic number.

1255813334780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255813334780 is an abundant number, since it is smaller than the sum of its proper divisors (1457677864996).

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

1255813334780 is a wasteful number, since it uses less digits than its factorization.

1255813334780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137454 (or 3137452 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 1255813334780 in words is "one trillion, two hundred fifty-five billion, eight hundred thirteen million, three hundred thirty-four thousand, seven hundred eighty".