1255757722720 has 48 divisors (see below), whose sum is σ = 2967589094400. Its totient is φ = 502157231104.

The previous prime is 1255757722691. The next prime is 1255757722771. The reversal of 1255757722720 is 272277575521.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 585952 + ... + 1689631.

It is an arithmetic number, because the mean of its divisors is an integer number (61824772800).

Almost surely, 2^{1255757722720} is an apocalyptic number.

1255757722720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255757722720 is an abundant number, since it is smaller than the sum of its proper divisors (1711831371680).

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

1255757722720 is a wasteful number, since it uses less digits than its factorization.

1255757722720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279047 (or 2279039 counting only the distinct ones).

The product of its (nonzero) digits is 4802000, while the sum is 52.

The spelling of 1255757722720 in words is "one trillion, two hundred fifty-five billion, seven hundred fifty-seven million, seven hundred twenty-two thousand, seven hundred twenty".