68207871413 has 4 divisors (see below), whose sum is σ = 74408587008. Its totient is φ = 62007155820.

The previous prime is 68207871409. The next prime is 68207871491. The reversal of 68207871413 is 31417870286.

It is a happy number.

68207871413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68207871413 - 2² = 68207871409 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 (68207801413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3100357781 + ... + 3100357802.

It is an arithmetic number, because the mean of its divisors is an integer number (18602146752).

Almost surely, 2^68207871413 is an apocalyptic number.

It is an amenable number.

68207871413 is a deficient number, since it is larger than the sum of its proper divisors (6200715595).

68207871413 is a wasteful number, since it uses less digits than its factorization.

68207871413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200715594.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 68207871413 in words is "sixty-eight billion, two hundred seven million, eight hundred seventy-one thousand, four hundred thirteen".