68012944838397 has 12 divisors (see below), whose sum is σ = 105797914193244. Its totient is φ = 41854119900480.

The previous prime is 68012944838389. The next prime is 68012944838401. The reversal of 68012944838397 is 79383844921086.

68012944838397 is a `hidden beast` number, since 6 + 8 + 0 + 12 + 9 + 448 + 3 + 83 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18537209696196 + 49475735142201 = 4305486^2 + 7033899^2 .

It is not a de Polignac number, because 68012944838397 - 2³ = 68012944838389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68012944838317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290653610304 + ... + 290653610537.

It is an arithmetic number, because the mean of its divisors is an integer number (8816492849437).

Almost surely, 2^{68012944838397} is an apocalyptic number.

It is an amenable number.

68012944838397 is a deficient number, since it is larger than the sum of its proper divisors (37784969354847).

68012944838397 is a wasteful number, since it uses less digits than its factorization.

68012944838397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581307220860 (or 581307220857 counting only the distinct ones).

The product of its (nonzero) digits is 501645312, while the sum is 72.

The spelling of 68012944838397 in words is "sixty-eight trillion, twelve billion, nine hundred forty-four million, eight hundred thirty-eight thousand, three hundred ninety-seven".