1440278413487 has 2 divisors, whose sum is σ = 1440278413488. Its totient is φ = 1440278413486.

The previous prime is 1440278413451. The next prime is 1440278413493. The reversal of 1440278413487 is 7843148720441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1440278413487 - 2³⁶ = 1371558936751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440278415487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720139206743 + 720139206744.

It is an arithmetic number, because the mean of its divisors is an integer number (720139206744).

Almost surely, 2^{1440278413487} is an apocalyptic number.

1440278413487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440278413487 is an equidigital number, since it uses as much as digits as its factorization.

1440278413487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4816896, while the sum is 53.

The spelling of 1440278413487 in words is "one trillion, four hundred forty billion, two hundred seventy-eight million, four hundred thirteen thousand, four hundred eighty-seven".