68836880407 has 2 divisors, whose sum is σ = 68836880408. Its totient is φ = 68836880406.

The previous prime is 68836880377. The next prime is 68836880449. The reversal of 68836880407 is 70408863886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68836880407 - 2¹¹ = 68836878359 is a prime.

It is a super-2 number, since 2×68836880407² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68836880467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34418440203 + 34418440204.

It is an arithmetic number, because the mean of its divisors is an integer number (34418440204).

Almost surely, 2^68836880407 is an apocalyptic number.

68836880407 is a deficient number, since it is larger than the sum of its proper divisors (1).

68836880407 is an equidigital number, since it uses as much as digits as its factorization.

68836880407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 68836880407 in words is "sixty-eight billion, eight hundred thirty-six million, eight hundred eighty thousand, four hundred seven".