421907152896 has 120 divisors (see below), whose sum is σ = 1250058428640. Its totient is φ = 140635570176.

The previous prime is 421907152871. The next prime is 421907152903. The reversal of 421907152896 is 698251709124.

It is a happy number.

421907152896 is a `hidden beast` number, since 4 + 21 + 9 + 0 + 7 + 1 + 528 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34506 + ... + 919241.

It is an arithmetic number, because the mean of its divisors is an integer number (10417153572).

Almost surely, 2^421907152896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421907152896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625029214320).

421907152896 is an abundant number, since it is smaller than the sum of its proper divisors (828151275744).

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

421907152896 is an frugal number, since it uses more digits than its factorization.

421907152896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953784 (or 953752 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 421907152896 in words is "four hundred twenty-one billion, nine hundred seven million, one hundred fifty-two thousand, eight hundred ninety-six".