421734137182 has 8 divisors (see below), whose sum is σ = 660105606096. Its totient is φ = 201698935152.

The previous prime is 421734137141. The next prime is 421734137221. The reversal of 421734137182 is 281731437124.

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

It is a super-2 number, since 2×421734137182² (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 in 3 ways as a sum of consecutive naturals, for example, 4584066663 + ... + 4584066754.

It is an arithmetic number, because the mean of its divisors is an integer number (82513200762).

Almost surely, 2^421734137182 is an apocalyptic number.

421734137182 is a deficient number, since it is larger than the sum of its proper divisors (238371468914).

421734137182 is a wasteful number, since it uses less digits than its factorization.

421734137182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9168133442.

The product of its digits is 225792, while the sum is 43.

The spelling of 421734137182 in words is "four hundred twenty-one billion, seven hundred thirty-four million, one hundred thirty-seven thousand, one hundred eighty-two".