1442013978631 has 2 divisors, whose sum is σ = 1442013978632. Its totient is φ = 1442013978630.

The previous prime is 1442013978599. The next prime is 1442013978649. The reversal of 1442013978631 is 1368793102441.

It is a strong prime.

It is an emirp because it is prime and its reverse (1368793102441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1442013978631 - 2⁵ = 1442013978599 is a prime.

It is a super-2 number, since 2×1442013978631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442013978931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721006989315 + 721006989316.

It is an arithmetic number, because the mean of its divisors is an integer number (721006989316).

Almost surely, 2^{1442013978631} is an apocalyptic number.

1442013978631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442013978631 is an equidigital number, since it uses as much as digits as its factorization.

1442013978631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 1442013978631 in words is "one trillion, four hundred forty-two billion, thirteen million, nine hundred seventy-eight thousand, six hundred thirty-one".