1463444432491 has 2 divisors, whose sum is σ = 1463444432492. Its totient is φ = 1463444432490.

The previous prime is 1463444432371. The next prime is 1463444432507. The reversal of 1463444432491 is 1942344443641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1463444432491 - 2¹⁵ = 1463444399723 is a prime.

It is not a weakly prime, because it can be changed into another prime (1463444412491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731722216245 + 731722216246.

It is an arithmetic number, because the mean of its divisors is an integer number (731722216246).

Almost surely, 2^{1463444432491} is an apocalyptic number.

1463444432491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1463444432491 is an equidigital number, since it uses as much as digits as its factorization.

1463444432491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 49.

The spelling of 1463444432491 in words is "one trillion, four hundred sixty-three billion, four hundred forty-four million, four hundred thirty-two thousand, four hundred ninety-one".