1440441431678 has 16 divisors (see below), whose sum is σ = 2210947904880. Its totient is φ = 703459369536.

The previous prime is 1440441431677. The next prime is 1440441431761. The reversal of 1440441431678 is 8761341440441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440441431677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6943676 + ... + 7148112.

It is an arithmetic number, because the mean of its divisors is an integer number (138184244055).

Almost surely, 2^{1440441431678} is an apocalyptic number.

1440441431678 is a deficient number, since it is larger than the sum of its proper divisors (770506473202).

1440441431678 is a wasteful number, since it uses less digits than its factorization.

1440441431678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286411.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 1440441431678 in words is "one trillion, four hundred forty billion, four hundred forty-one million, four hundred thirty-one thousand, six hundred seventy-eight".