421669567368 has 80 divisors (see below), whose sum is σ = 1349788841280. Its totient is φ = 120477017952.

The previous prime is 421669567367. The next prime is 421669567393. The reversal of 421669567368 is 863765966124.

421669567368 is a `hidden beast` number, since 4 + 2 + 1 + 6 + 6 + 9 + 567 + 3 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (421669567367) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46475796 + ... + 46484867.

It is an arithmetic number, because the mean of its divisors is an integer number (16872360516).

Almost surely, 2^421669567368 is an apocalyptic number.

It is an amenable number.

421669567368 is an abundant number, since it is smaller than the sum of its proper divisors (928119273912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421669567368 is a wasteful number, since it uses less digits than its factorization.

421669567368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92960688 (or 92960675 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 421669567368 in words is "four hundred twenty-one billion, six hundred sixty-nine million, five hundred sixty-seven thousand, three hundred sixty-eight".