421613145205 has 32 divisors (see below), whose sum is σ = 591919614720. Its totient is φ = 282320709120.

The previous prime is 421613145167. The next prime is 421613145229. The reversal of 421613145205 is 502541316124.

It is not a de Polignac number, because 421613145205 - 2²³ = 421604756597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413584 + ... + 1007113.

It is an arithmetic number, because the mean of its divisors is an integer number (18497487960).

Almost surely, 2^421613145205 is an apocalyptic number.

It is an amenable number.

421613145205 is a deficient number, since it is larger than the sum of its proper divisors (170306469515).

421613145205 is a wasteful number, since it uses less digits than its factorization.

421613145205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420909.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 421613145205 in words is "four hundred twenty-one billion, six hundred thirteen million, one hundred forty-five thousand, two hundred five".