86606218618351 has 2 divisors, whose sum is σ = 86606218618352. Its totient is φ = 86606218618350.

The previous prime is 86606218618321. The next prime is 86606218618357. The reversal of 86606218618351 is 15381681260668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86606218618351 - 2³⁹ = 86056462804463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86606218618351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86606218618357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43303109309175 + 43303109309176.

It is an arithmetic number, because the mean of its divisors is an integer number (43303109309176).

Almost surely, 2^{86606218618351} is an apocalyptic number.

86606218618351 is a deficient number, since it is larger than the sum of its proper divisors (1).

86606218618351 is an equidigital number, since it uses as much as digits as its factorization.

86606218618351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 86606218618351 in words is "eighty-six trillion, six hundred six billion, two hundred eighteen million, six hundred eighteen thousand, three hundred fifty-one".