67286133940 has 24 divisors (see below), whose sum is σ = 141679719720. Its totient is φ = 26842293888.

The previous prime is 67286133931. The next prime is 67286134049. The reversal of 67286133940 is 4933168276.

It can be written as a sum of positive squares in 4 ways, for example, as 13301470224 + 53984663716 = 115332^2 + 232346^2 .

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, 4502335 + ... + 4517254.

It is an arithmetic number, because the mean of its divisors is an integer number (5903321655).

Almost surely, 2^67286133940 is an apocalyptic number.

It is an amenable number.

67286133940 is an abundant number, since it is smaller than the sum of its proper divisors (74393585780).

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

67286133940 is a wasteful number, since it uses less digits than its factorization.

67286133940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019971 (or 9019969 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 67286133940 in words is "sixty-seven billion, two hundred eighty-six million, one hundred thirty-three thousand, nine hundred forty".