421523396822 has 32 divisors (see below), whose sum is σ = 726139140480. Its totient is φ = 181499719680.

The previous prime is 421523396779. The next prime is 421523396837. The reversal of 421523396822 is 228693325124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4879973 + ... + 4965599.

It is an arithmetic number, because the mean of its divisors is an integer number (22691848140).

Almost surely, 2^421523396822 is an apocalyptic number.

421523396822 is a deficient number, since it is larger than the sum of its proper divisors (304615743658).

421523396822 is a wasteful number, since it uses less digits than its factorization.

421523396822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97436.

The product of its digits is 1244160, while the sum is 47.

The spelling of 421523396822 in words is "four hundred twenty-one billion, five hundred twenty-three million, three hundred ninety-six thousand, eight hundred twenty-two".