67331421342 has 64 divisors (see below), whose sum is σ = 157577184000. Its totient is φ = 21252189024.

The previous prime is 67331421341. The next prime is 67331421347. The reversal of 67331421342 is 24312413376.

It is a junction number, because it is equal to n+sod(n) for n = 67331421297 and 67331421306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67331421341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2245384 + ... + 2275172.

It is an arithmetic number, because the mean of its divisors is an integer number (2462143500).

Almost surely, 2^67331421342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67331421342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78788592000).

67331421342 is an abundant number, since it is smaller than the sum of its proper divisors (90245762658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67331421342 is a wasteful number, since it uses less digits than its factorization.

67331421342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32022 (or 32016 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The spelling of 67331421342 in words is "sixty-seven billion, three hundred thirty-one million, four hundred twenty-one thousand, three hundred forty-two".