1485644020421 has 16 divisors (see below), whose sum is σ = 1655866195200. Its totient is φ = 1321306082880.

The previous prime is 1485644020381. The next prime is 1485644020433. The reversal of 1485644020421 is 1240204465841.

It is a cyclic number.

It is not a de Polignac number, because 1485644020421 - 2³⁸ = 1210766113477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485644010421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670355 + ... + 1849503.

It is an arithmetic number, because the mean of its divisors is an integer number (103491637200).

Almost surely, 2^{1485644020421} is an apocalyptic number.

1485644020421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1485644020421 is a deficient number, since it is larger than the sum of its proper divisors (170222174779).

1485644020421 is a wasteful number, since it uses less digits than its factorization.

1485644020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181644.

The product of its (nonzero) digits is 245760, while the sum is 41.

The spelling of 1485644020421 in words is "one trillion, four hundred eighty-five billion, six hundred forty-four million, twenty thousand, four hundred twenty-one".