68712527073 has 4 divisors (see below), whose sum is σ = 91616702768. Its totient is φ = 45808351380.

The previous prime is 68712527047. The next prime is 68712527083. The reversal of 68712527073 is 37072521786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-68712527073 is a prime.

It is a super-2 number, since 2×68712527073² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68712527083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11452087843 + ... + 11452087848.

It is an arithmetic number, because the mean of its divisors is an integer number (22904175692).

Almost surely, 2^68712527073 is an apocalyptic number.

It is an amenable number.

68712527073 is a deficient number, since it is larger than the sum of its proper divisors (22904175695).

68712527073 is a wasteful number, since it uses less digits than its factorization.

68712527073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22904175694.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 68712527073 in words is "sixty-eight billion, seven hundred twelve million, five hundred twenty-seven thousand, seventy-three".