1255805751723 has 16 divisors (see below), whose sum is σ = 1678538188800. Its totient is φ = 835139295360.

The previous prime is 1255805751709. The next prime is 1255805751727. The reversal of 1255805751723 is 3271575085521.

It is not a de Polignac number, because 1255805751723 - 2¹⁷ = 1255805620651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255805751727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7118163 + ... + 7292451.

It is an arithmetic number, because the mean of its divisors is an integer number (104908636800).

Almost surely, 2^{1255805751723} is an apocalyptic number.

1255805751723 is a deficient number, since it is larger than the sum of its proper divisors (422732437077).

1255805751723 is a wasteful number, since it uses less digits than its factorization.

1255805751723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180202.

The product of its (nonzero) digits is 2940000, while the sum is 51.

The spelling of 1255805751723 in words is "one trillion, two hundred fifty-five billion, eight hundred five million, seven hundred fifty-one thousand, seven hundred twenty-three".