68712532415 has 8 divisors (see below), whose sum is σ = 82458949200. Its totient is φ = 54967419072.

The previous prime is 68712532411. The next prime is 68712532423. The reversal of 68712532415 is 51423521786.

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 68712532415 - 2² = 68712532411 is a prime.

It is a super-2 number, since 2×68712532415² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68712532411) 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, 205865 + ... + 424034.

It is an arithmetic number, because the mean of its divisors is an integer number (10307368650).

Almost surely, 2^68712532415 is an apocalyptic number.

68712532415 is a deficient number, since it is larger than the sum of its proper divisors (13746416785).

68712532415 is a wasteful number, since it uses less digits than its factorization.

68712532415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651721.

The product of its digits is 403200, while the sum is 44.

The spelling of 68712532415 in words is "sixty-eight billion, seven hundred twelve million, five hundred thirty-two thousand, four hundred fifteen".