1440668426775 has 48 divisors (see below), whose sum is σ = 2552403135744. Its totient is φ = 714446241280.

The previous prime is 1440668426737. The next prime is 1440668426783. The reversal of 1440668426775 is 5776248660441.

It is not a de Polignac number, because 1440668426775 - 2⁶ = 1440668426711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6701019 + ... + 6912668.

It is an arithmetic number, because the mean of its divisors is an integer number (53175065328).

Almost surely, 2^{1440668426775} is an apocalyptic number.

1440668426775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1440668426775 is a deficient number, since it is larger than the sum of its proper divisors (1111734708969).

1440668426775 is a wasteful number, since it uses less digits than its factorization.

1440668426775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13613800 (or 13613795 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 60.

The spelling of 1440668426775 in words is "one trillion, four hundred forty billion, six hundred sixty-eight million, four hundred twenty-six thousand, seven hundred seventy-five".