68720226125 has 12 divisors (see below), whose sum is σ = 85766500092. Its totient is φ = 54973836200.

The previous prime is 68720226121. The next prime is 68720226151. The reversal of 68720226125 is 52162202786.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 2199047236 + 66521178889 = 46894^2 + 257917^2 .

It is not a de Polignac number, because 68720226125 - 2² = 68720226121 is a prime.

It is a super-2 number, since 2×68720226125² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68720226121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2919152 + ... + 2942598.

It is an arithmetic number, because the mean of its divisors is an integer number (7147208341).

Almost surely, 2^68720226125 is an apocalyptic number.

It is an amenable number.

68720226125 is a deficient number, since it is larger than the sum of its proper divisors (17046273967).

68720226125 is an frugal number, since it uses more digits than its factorization.

68720226125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46909 (or 23452 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 68720226125 in words is "sixty-eight billion, seven hundred twenty million, two hundred twenty-six thousand, one hundred twenty-five".