1404320973491 has 2 divisors, whose sum is σ = 1404320973492. Its totient is φ = 1404320973490.

The previous prime is 1404320973487. The next prime is 1404320973619. The reversal of 1404320973491 is 1943790234041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1404320973491 - 2² = 1404320973487 is a prime.

It is not a weakly prime, because it can be changed into another prime (1404320973481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702160486745 + 702160486746.

It is an arithmetic number, because the mean of its divisors is an integer number (702160486746).

Almost surely, 2^{1404320973491} is an apocalyptic number.

1404320973491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404320973491 is an equidigital number, since it uses as much as digits as its factorization.

1404320973491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 1404320973491 in words is "one trillion, four hundred four billion, three hundred twenty million, nine hundred seventy-three thousand, four hundred ninety-one".