86626696879 has 2 divisors, whose sum is σ = 86626696880. Its totient is φ = 86626696878.

The previous prime is 86626696861. The next prime is 86626696883. The reversal of 86626696879 is 97869662668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86626696879 - 2¹⁷ = 86626565807 is a prime.

It is a super-2 number, since 2×86626696879² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86626696889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43313348439 + 43313348440.

It is an arithmetic number, because the mean of its divisors is an integer number (43313348440).

Almost surely, 2^86626696879 is an apocalyptic number.

86626696879 is a deficient number, since it is larger than the sum of its proper divisors (1).

86626696879 is an equidigital number, since it uses as much as digits as its factorization.

86626696879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564350976, while the sum is 73.

The spelling of 86626696879 in words is "eighty-six billion, six hundred twenty-six million, six hundred ninety-six thousand, eight hundred seventy-nine".