421355197234 has 8 divisors (see below), whose sum is σ = 632495150208. Its totient is φ = 210523480500.

The previous prime is 421355197187. The next prime is 421355197243. The reversal of 421355197234 is 432791553124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×421355197234² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77055642 + ... + 77061109.

It is an arithmetic number, because the mean of its divisors is an integer number (79061893776).

Almost surely, 2^421355197234 is an apocalyptic number.

421355197234 is a deficient number, since it is larger than the sum of its proper divisors (211139952974).

421355197234 is a wasteful number, since it uses less digits than its factorization.

421355197234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154118120.

The product of its digits is 907200, while the sum is 46.

The spelling of 421355197234 in words is "four hundred twenty-one billion, three hundred fifty-five million, one hundred ninety-seven thousand, two hundred thirty-four".