68519913132811 has 6 divisors (see below), whose sum is σ = 79706837725980. Its totient is φ = 58731354113796.

The previous prime is 68519913132809. The next prime is 68519913132829. The reversal of 68519913132811 is 11823131991586.

It is not a de Polignac number, because 68519913132811 - 2¹ = 68519913132809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68519913132851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 699182787021 + ... + 699182787118.

It is an arithmetic number, because the mean of its divisors is an integer number (13284472954330).

Almost surely, 2^{68519913132811} is an apocalyptic number.

68519913132811 is a deficient number, since it is larger than the sum of its proper divisors (11186924593169).

68519913132811 is a wasteful number, since it uses less digits than its factorization.

68519913132811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398365574153 (or 1398365574146 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 58.

The spelling of 68519913132811 in words is "sixty-eight trillion, five hundred nineteen billion, nine hundred thirteen million, one hundred thirty-two thousand, eight hundred eleven".