421902055329 has 16 divisors (see below), whose sum is σ = 587795044992. Its totient is φ = 268671921408.

The previous prime is 421902055321. The next prime is 421902055339. The reversal of 421902055329 is 923550209124.

It is not a de Polignac number, because 421902055329 - 2³ = 421902055321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421902055321) 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, 4120312 + ... + 4221465.

It is an arithmetic number, because the mean of its divisors is an integer number (36737190312).

Almost surely, 2^421902055329 is an apocalyptic number.

It is an amenable number.

421902055329 is a deficient number, since it is larger than the sum of its proper divisors (165892989663).

421902055329 is a wasteful number, since it uses less digits than its factorization.

421902055329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8342536.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 421902055329 in words is "four hundred twenty-one billion, nine hundred two million, fifty-five thousand, three hundred twenty-nine".