67392805940 has 24 divisors (see below), whose sum is σ = 146405062440. Its totient is φ = 26027566208.

The previous prime is 67392805903. The next prime is 67392806003. The reversal of 67392805940 is 4950829376.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8306864164 + 59085941776 = 91142^2 + 243076^2 .

It is a congruent number.

It is an unprimeable number.

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, 58096667 + ... + 58097826.

It is an arithmetic number, because the mean of its divisors is an integer number (6100210935).

Almost surely, 2^67392805940 is an apocalyptic number.

It is an amenable number.

67392805940 is an abundant number, since it is smaller than the sum of its proper divisors (79012256500).

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

67392805940 is a wasteful number, since it uses less digits than its factorization.

67392805940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116194531 (or 116194529 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 67392805940 in words is "sixty-seven billion, three hundred ninety-two million, eight hundred five thousand, nine hundred forty".