68149530470011 has 4 divisors (see below), whose sum is σ = 68149552782024. Its totient is φ = 68149508158000.

The previous prime is 68149530469997. The next prime is 68149530470023. The reversal of 68149530470011 is 11007403594186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68149530470011 - 2³¹ = 68147382986363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68149530470071) 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, 5677690 + ... + 12982111.

It is an arithmetic number, because the mean of its divisors is an integer number (17037388195506).

Almost surely, 2^{68149530470011} is an apocalyptic number.

68149530470011 is a deficient number, since it is larger than the sum of its proper divisors (22312013).

68149530470011 is a wasteful number, since it uses less digits than its factorization.

68149530470011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22312012.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 68149530470011 in words is "sixty-eight trillion, one hundred forty-nine billion, five hundred thirty million, four hundred seventy thousand, eleven".