1244406135755 has 16 divisors (see below), whose sum is σ = 1500964686144. Its totient is φ = 990407349120.

The previous prime is 1244406135737. The next prime is 1244406135761. The reversal of 1244406135755 is 5575316044421.

It is not a de Polignac number, because 1244406135755 - 2⁸ = 1244406135499 is a prime.

It is a Duffinian 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, 20322485 + ... + 20383625.

It is an arithmetic number, because the mean of its divisors is an integer number (93810292884).

Almost surely, 2^{1244406135755} is an apocalyptic number.

1244406135755 is a deficient number, since it is larger than the sum of its proper divisors (256558550389).

1244406135755 is a wasteful number, since it uses less digits than its factorization.

1244406135755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82006.

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 1244406135755 in words is "one trillion, two hundred forty-four billion, four hundred six million, one hundred thirty-five thousand, seven hundred fifty-five".