421001525340424 has 64 divisors (see below), whose sum is σ = 936623764051200. Its totient is φ = 173578619499264.

The previous prime is 421001525340401. The next prime is 421001525340427. The reversal of 421001525340424 is 424043525100124.

It is not an unprimeable number, because it can be changed into a prime (421001525340427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467487684 + ... + 468387379.

It is an arithmetic number, because the mean of its divisors is an integer number (14634746313300).

Almost surely, 2^{421001525340424} is an apocalyptic number.

It is an amenable number.

421001525340424 is an abundant number, since it is smaller than the sum of its proper divisors (515622238710776).

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

421001525340424 is a wasteful number, since it uses less digits than its factorization.

421001525340424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935875382 (or 935875378 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 421001525340424 in words is "four hundred twenty-one trillion, one billion, five hundred twenty-five million, three hundred forty thousand, four hundred twenty-four".