421006128367 has 8 divisors (see below), whose sum is σ = 459422841600. Its totient is φ = 382613319960.

The previous prime is 421006128359. The next prime is 421006128391. The reversal of 421006128367 is 763821600124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421006128367 - 2³ = 421006128359 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 (421006128467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5939367 + ... + 6009832.

It is an arithmetic number, because the mean of its divisors is an integer number (57427855200).

Almost surely, 2^421006128367 is an apocalyptic number.

421006128367 is a deficient number, since it is larger than the sum of its proper divisors (38416713233).

421006128367 is a wasteful number, since it uses less digits than its factorization.

421006128367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952413.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 421006128367 in words is "four hundred twenty-one billion, six million, one hundred twenty-eight thousand, three hundred sixty-seven".