1420449810621 has 32 divisors (see below), whose sum is σ = 2039548014720. Its totient is φ = 876062705664.

The previous prime is 1420449810599. The next prime is 1420449810649. The reversal of 1420449810621 is 1260189440241.

It is not a de Polignac number, because 1420449810621 - 2⁵ = 1420449810589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420449810421) 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 in 31 ways as a sum of consecutive naturals, for example, 37211281 + ... + 37249433.

It is an arithmetic number, because the mean of its divisors is an integer number (63735875460).

Almost surely, 2^{1420449810621} is an apocalyptic number.

It is an amenable number.

1420449810621 is a deficient number, since it is larger than the sum of its proper divisors (619098204099).

1420449810621 is a wasteful number, since it uses less digits than its factorization.

1420449810621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50605.

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 1420449810621 in words is "one trillion, four hundred twenty billion, four hundred forty-nine million, eight hundred ten thousand, six hundred twenty-one".