68386145429 has 54 divisors (see below), whose sum is σ = 85658409954. Its totient is φ = 54426220800.

The previous prime is 68386145423. The next prime is 68386145453. The reversal of 68386145429 is 92454168386.

68386145429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 41351222500 + 27034922929 = 203350^2 + 164423^2 .

It is not a de Polignac number, because 68386145429 - 2⁴ = 68386145413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68386145423) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 97554779 + ... + 97555479.

It is an arithmetic number, because the mean of its divisors is an integer number (1586266851).

Almost surely, 2^68386145429 is an apocalyptic number.

It is an amenable number.

68386145429 is a deficient number, since it is larger than the sum of its proper divisors (17272264525).

68386145429 is an equidigital number, since it uses as much as digits as its factorization.

68386145429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 808 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 56.

The spelling of 68386145429 in words is "sixty-eight billion, three hundred eighty-six million, one hundred forty-five thousand, four hundred twenty-nine".