68669251743 has 32 divisors (see below), whose sum is σ = 99192360960. Its totient is φ = 42131358720.

The previous prime is 68669251741. The next prime is 68669251747. The reversal of 68669251743 is 34715296686.

It is not a de Polignac number, because 68669251743 - 2¹ = 68669251741 is a prime.

It is a super-2 number, since 2×68669251743² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68669251741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277263 + ... + 462831.

It is an arithmetic number, because the mean of its divisors is an integer number (3099761280).

Almost surely, 2^68669251743 is an apocalyptic number.

68669251743 is a deficient number, since it is larger than the sum of its proper divisors (30523109217).

68669251743 is a wasteful number, since it uses less digits than its factorization.

68669251743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185799.

The product of its digits is 13063680, while the sum is 57.

The spelling of 68669251743 in words is "sixty-eight billion, six hundred sixty-nine million, two hundred fifty-one thousand, seven hundred forty-three".