421247107008 has 840 divisors, whose sum is σ = 1559062058400. Its totient is φ = 110113136640.

The previous prime is 421247106989. The next prime is 421247107027. The reversal of 421247107008 is 800701742124.

It is an interprime number because it is at equal distance from previous prime (421247106989) and next prime (421247107027).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 913767898 + ... + 913768358.

It is an arithmetic number, because the mean of its divisors is an integer number (1856026260).

Almost surely, 2^421247107008 is an apocalyptic number.

421247107008 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421247107008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779531029200).

421247107008 is an abundant number, since it is smaller than the sum of its proper divisors (1137814951392).

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

421247107008 is a wasteful number, since it uses less digits than its factorization.

421247107008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 421247107008 in words is "four hundred twenty-one billion, two hundred forty-seven million, one hundred seven thousand, eight".