1431641840633 has 2 divisors, whose sum is σ = 1431641840634. Its totient is φ = 1431641840632.

The previous prime is 1431641840627. The next prime is 1431641840669. The reversal of 1431641840633 is 3360481461341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1324819416064 + 106822424569 = 1151008^2 + 326837^2 .

It is an emirp because it is prime and its reverse (3360481461341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1431641840633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1431641840833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715820920316 + 715820920317.

It is an arithmetic number, because the mean of its divisors is an integer number (715820920317).

Almost surely, 2^{1431641840633} is an apocalyptic number.

It is an amenable number.

1431641840633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431641840633 is an equidigital number, since it uses as much as digits as its factorization.

1431641840633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 1431641840633 in words is "one trillion, four hundred thirty-one billion, six hundred forty-one million, eight hundred forty thousand, six hundred thirty-three".