420867506863 has 4 divisors (see below), whose sum is σ = 431132568048. Its totient is φ = 410602445680.

The previous prime is 420867506777. The next prime is 420867506887. The reversal of 420867506863 is 368605768024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420867506863 - 2⁹ = 420867506351 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 (420867506263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5132530531 + ... + 5132530612.

It is an arithmetic number, because the mean of its divisors is an integer number (107783142012).

Almost surely, 2^420867506863 is an apocalyptic number.

420867506863 is a deficient number, since it is larger than the sum of its proper divisors (10265061185).

420867506863 is a wasteful number, since it uses less digits than its factorization.

420867506863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10265061184.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 420867506863 in words is "four hundred twenty billion, eight hundred sixty-seven million, five hundred six thousand, eight hundred sixty-three".