1431401163889 has 4 divisors (see below), whose sum is σ = 1431464169024. Its totient is φ = 1431338158756.

The previous prime is 1431401163839. The next prime is 1431401163901. The reversal of 1431401163889 is 9883611041341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1431401163889 - 2²¹ = 1431399066737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431401163839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31468477 + ... + 31513930.

It is an arithmetic number, because the mean of its divisors is an integer number (357866042256).

Almost surely, 2^{1431401163889} is an apocalyptic number.

It is an amenable number.

1431401163889 is a deficient number, since it is larger than the sum of its proper divisors (63005135).

1431401163889 is an equidigital number, since it uses as much as digits as its factorization.

1431401163889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63005134.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 1431401163889 in words is "one trillion, four hundred thirty-one billion, four hundred one million, one hundred sixty-three thousand, eight hundred eighty-nine".