421343254500452 has 24 divisors (see below), whose sum is σ = 793956880372320. Its totient is φ = 194918514542720.

The previous prime is 421343254500451. The next prime is 421343254500559. The reversal of 421343254500452 is 254005452343124.

It is a super-2 number, since 2×421343254500452² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421343254500451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52510371674 + ... + 52510379697.

It is an arithmetic number, because the mean of its divisors is an integer number (33081536682180).

Almost surely, 2^{421343254500452} is an apocalyptic number.

It is an amenable number.

421343254500452 is a deficient number, since it is larger than the sum of its proper divisors (372613625871868).

421343254500452 is a wasteful number, since it uses less digits than its factorization.

421343254500452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105020751451 (or 105020751449 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 44.

The spelling of 421343254500452 in words is "four hundred twenty-one trillion, three hundred forty-three billion, two hundred fifty-four million, five hundred thousand, four hundred fifty-two".