68240432365 has 24 divisors (see below), whose sum is σ = 95271355872. Its totient is φ = 46786914720.

The previous prime is 68240432363. The next prime is 68240432369. The reversal of 68240432365 is 56323404286.

It is a happy number.

It is not a de Polignac number, because 68240432365 - 2¹ = 68240432363 is a prime.

It is a super-3 number, since 3×68240432365³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68240432363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2310622 + ... + 2339968.

It is an arithmetic number, because the mean of its divisors is an integer number (3969639828).

Almost surely, 2^68240432365 is an apocalyptic number.

It is an amenable number.

68240432365 is a deficient number, since it is larger than the sum of its proper divisors (27030923507).

68240432365 is a wasteful number, since it uses less digits than its factorization.

68240432365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38857 (or 38850 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 68240432365 in words is "sixty-eight billion, two hundred forty million, four hundred thirty-two thousand, three hundred sixty-five".