86249881760837 has 2 divisors, whose sum is σ = 86249881760838. Its totient is φ = 86249881760836.

The previous prime is 86249881760831. The next prime is 86249881760839. The reversal of 86249881760837 is 73806718894268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84325027973956 + 1924853786881 = 9182866^2 + 1387391^2 .

It is a cyclic number.

It is not a de Polignac number, because 86249881760837 - 2⁴ = 86249881760821 is a prime.

Together with 86249881760839, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86249881760831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43124940880418 + 43124940880419.

It is an arithmetic number, because the mean of its divisors is an integer number (43124940880419).

Almost surely, 2^{86249881760837} is an apocalyptic number.

It is an amenable number.

86249881760837 is a deficient number, since it is larger than the sum of its proper divisors (1).

86249881760837 is an equidigital number, since it uses as much as digits as its factorization.

86249881760837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1560674304, while the sum is 77.

The spelling of 86249881760837 in words is "eighty-six trillion, two hundred forty-nine billion, eight hundred eighty-one million, seven hundred sixty thousand, eight hundred thirty-seven".