421045663862 has 16 divisors (see below), whose sum is σ = 665349951600. Its totient is φ = 199280380320.

The previous prime is 421045663823. The next prime is 421045663873. The reversal of 421045663862 is 268366540124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4461089 + ... + 4554492.

It is an arithmetic number, because the mean of its divisors is an integer number (41584371975).

Almost surely, 2^421045663862 is an apocalyptic number.

421045663862 is a deficient number, since it is larger than the sum of its proper divisors (244304287738).

421045663862 is a wasteful number, since it uses less digits than its factorization.

421045663862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016831.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 421045663862 in words is "four hundred twenty-one billion, forty-five million, six hundred sixty-three thousand, eight hundred sixty-two".