421734338134 has 4 divisors (see below), whose sum is σ = 632601507204. Its totient is φ = 210867169066.

The previous prime is 421734338117. The next prime is 421734338143. The reversal of 421734338134 is 431833437124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×421734338134² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105433584532 + ... + 105433584535.

It is an arithmetic number, because the mean of its divisors is an integer number (158150376801).

Almost surely, 2^421734338134 is an apocalyptic number.

421734338134 is a deficient number, since it is larger than the sum of its proper divisors (210867169070).

421734338134 is a wasteful number, since it uses less digits than its factorization.

421734338134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210867169069.

The product of its digits is 580608, while the sum is 43.

The spelling of 421734338134 in words is "four hundred twenty-one billion, seven hundred thirty-four million, three hundred thirty-eight thousand, one hundred thirty-four".