68143464395 has 16 divisors (see below), whose sum is σ = 82992924000. Its totient is φ = 53702740224.

The previous prime is 68143464391. The next prime is 68143464439. The reversal of 68143464395 is 59346434186.

It is a cyclic number.

It is not a de Polignac number, because 68143464395 - 2² = 68143464391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68143464391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188981 + ... + 414729.

It is an arithmetic number, because the mean of its divisors is an integer number (5187057750).

Almost surely, 2^68143464395 is an apocalyptic number.

68143464395 is a deficient number, since it is larger than the sum of its proper divisors (14849459605).

68143464395 is a wasteful number, since it uses less digits than its factorization.

68143464395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226654.

The product of its digits is 7464960, while the sum is 53.

The spelling of 68143464395 in words is "sixty-eight billion, one hundred forty-three million, four hundred sixty-four thousand, three hundred ninety-five".