1406801406887 has 2 divisors, whose sum is σ = 1406801406888. Its totient is φ = 1406801406886.

The previous prime is 1406801406859. The next prime is 1406801406979. The reversal of 1406801406887 is 7886041086041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1406801406887 - 2¹² = 1406801402791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406801706887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703400703443 + 703400703444.

It is an arithmetic number, because the mean of its divisors is an integer number (703400703444).

Almost surely, 2^{1406801406887} is an apocalyptic number.

1406801406887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406801406887 is an equidigital number, since it uses as much as digits as its factorization.

1406801406887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 53.

The spelling of 1406801406887 in words is "one trillion, four hundred six billion, eight hundred one million, four hundred six thousand, eight hundred eighty-seven".