86861925863 has 2 divisors, whose sum is σ = 86861925864. Its totient is φ = 86861925862.

The previous prime is 86861925827. The next prime is 86861925877. The reversal of 86861925863 is 36852916868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86861925863 - 2³⁴ = 69682056679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86861925796 and 86861925805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86861925823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43430962931 + 43430962932.

It is an arithmetic number, because the mean of its divisors is an integer number (43430962932).

Almost surely, 2^86861925863 is an apocalyptic number.

86861925863 is a deficient number, since it is larger than the sum of its proper divisors (1).

86861925863 is an equidigital number, since it uses as much as digits as its factorization.

86861925863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29859840, while the sum is 62.

The spelling of 86861925863 in words is "eighty-six billion, eight hundred sixty-one million, nine hundred twenty-five thousand, eight hundred sixty-three".