68452820007 has 64 divisors (see below), whose sum is σ = 114577182720. Its totient is φ = 35711539200.

The previous prime is 68452819987. The next prime is 68452820017. The reversal of 68452820007 is 70002825486.

It is a happy number.

68452820007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 68452820007 - 2¹⁵ = 68452787239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68452820017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 751882 + ... + 837992.

It is an arithmetic number, because the mean of its divisors is an integer number (1790268480).

Almost surely, 2^68452820007 is an apocalyptic number.

68452820007 is a deficient number, since it is larger than the sum of its proper divisors (46124362713).

68452820007 is a wasteful number, since it uses less digits than its factorization.

68452820007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86264.

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 68452820007 in words is "sixty-eight billion, four hundred fifty-two million, eight hundred twenty thousand, seven".