421869742364 has 24 divisors (see below), whose sum is σ = 843831149280. Its totient is φ = 180781675776.

The previous prime is 421869742319. The next prime is 421869742379. The reversal of 421869742364 is 463247968124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554609 + ... + 1073000.

It is an arithmetic number, because the mean of its divisors is an integer number (35159631220).

Almost surely, 2^421869742364 is an apocalyptic number.

It is an amenable number.

421869742364 is an abundant number, since it is smaller than the sum of its proper divisors (421961406916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421869742364 is a wasteful number, since it uses less digits than its factorization.

421869742364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636877 (or 1636875 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 56.

The spelling of 421869742364 in words is "four hundred twenty-one billion, eight hundred sixty-nine million, seven hundred forty-two thousand, three hundred sixty-four".