68207536123 has 2 divisors, whose sum is σ = 68207536124. Its totient is φ = 68207536122.

The previous prime is 68207536073. The next prime is 68207536147. The reversal of 68207536123 is 32163570286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68207536123 - 2³³ = 59617601531 is a prime.

It is a super-2 number, since 2×68207536123² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68207536123.

It is not a weakly prime, because it can be changed into another prime (68207536723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34103768061 + 34103768062.

It is an arithmetic number, because the mean of its divisors is an integer number (34103768062).

Almost surely, 2^68207536123 is an apocalyptic number.

68207536123 is a deficient number, since it is larger than the sum of its proper divisors (1).

68207536123 is an equidigital number, since it uses as much as digits as its factorization.

68207536123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 68207536123 in words is "sixty-eight billion, two hundred seven million, five hundred thirty-six thousand, one hundred twenty-three".