67345881940 has 24 divisors (see below), whose sum is σ = 141432232032. Its totient is φ = 26937232800.

The previous prime is 67345881937. The next prime is 67345881947. The reversal of 67345881940 is 4918854376.

67345881940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67345881947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562447 + ... + 671593.

It is an arithmetic number, because the mean of its divisors is an integer number (5893009668).

Almost surely, 2^67345881940 is an apocalyptic number.

It is an amenable number.

67345881940 is an abundant number, since it is smaller than the sum of its proper divisors (74086350092).

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

67345881940 is a wasteful number, since it uses less digits than its factorization.

67345881940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140007 (or 140005 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 67345881940 in words is "sixty-seven billion, three hundred forty-five million, eight hundred eighty-one thousand, nine hundred forty".