68007527172 has 72 divisors (see below), whose sum is σ = 185608015320. Its totient is φ = 20871544320.

The previous prime is 68007527131. The next prime is 68007527177. The reversal of 68007527172 is 27172570086.

It can be written as a sum of positive squares in 4 ways, for example, as 24265476 + 67983261696 = 4926^2 + 260736^2 .

It is not an unprimeable number, because it can be changed into a prime (68007527177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4729 + ... + 368832.

Almost surely, 2^68007527172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68007527172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92804007660).

68007527172 is an abundant number, since it is smaller than the sum of its proper divisors (117600488148).

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

68007527172 is a wasteful number, since it uses less digits than its factorization.

68007527172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373973 (or 373968 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 68007527172 in words is "sixty-eight billion, seven million, five hundred twenty-seven thousand, one hundred seventy-two".