68940529237 has 8 divisors (see below), whose sum is σ = 70814336256. Its totient is φ = 67083680112.

The previous prime is 68940529219. The next prime is 68940529253. The reversal of 68940529237 is 73292504986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68940529237 - 2³¹ = 66793045589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68940529277) 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, 4231233 + ... + 4247494.

It is an arithmetic number, because the mean of its divisors is an integer number (8851792032).

Almost surely, 2^68940529237 is an apocalyptic number.

It is an amenable number.

68940529237 is a deficient number, since it is larger than the sum of its proper divisors (1873807019).

68940529237 is a wasteful number, since it uses less digits than its factorization.

68940529237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478947.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 68940529237 in words is "sixty-eight billion, nine hundred forty million, five hundred twenty-nine thousand, two hundred thirty-seven".