67865810240 has 28 divisors (see below), whose sum is σ = 161605461396. Its totient is φ = 27146323968.

The previous prime is 67865810213. The next prime is 67865810291. The reversal of 67865810240 is 4201856876.

It can be written as a sum of positive squares in 2 ways, for example, as 46493709376 + 21372100864 = 215624^2 + 146192^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106040009 + ... + 106040648.

Almost surely, 2^67865810240 is an apocalyptic number.

It is an amenable number.

67865810240 is an abundant number, since it is smaller than the sum of its proper divisors (93739651156).

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

67865810240 is a wasteful number, since it uses less digits than its factorization.

67865810240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212080674 (or 212080664 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 67865810240 in words is "sixty-seven billion, eight hundred sixty-five million, eight hundred ten thousand, two hundred forty".