421639362142 has 16 divisors (see below), whose sum is σ = 633633351120. Its totient is φ = 210428463168.

The previous prime is 421639362127. The next prime is 421639362143. The reversal of 421639362142 is 241263936124.

It is a super-3 number, since 3×421639362142³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421639362143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3950098 + ... + 4055434.

It is an arithmetic number, because the mean of its divisors is an integer number (39602084445).

Almost surely, 2^421639362142 is an apocalyptic number.

421639362142 is a deficient number, since it is larger than the sum of its proper divisors (211993988978).

421639362142 is a wasteful number, since it uses less digits than its factorization.

421639362142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109035.

The product of its digits is 373248, while the sum is 43.

The spelling of 421639362142 in words is "four hundred twenty-one billion, six hundred thirty-nine million, three hundred sixty-two thousand, one hundred forty-two".