86256220235791 has 2 divisors, whose sum is σ = 86256220235792. Its totient is φ = 86256220235790.

The previous prime is 86256220235737. The next prime is 86256220235797. The reversal of 86256220235791 is 19753202265268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86256220235791 - 2¹³ = 86256220227599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86256220235797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43128110117895 + 43128110117896.

It is an arithmetic number, because the mean of its divisors is an integer number (43128110117896).

Almost surely, 2^{86256220235791} is an apocalyptic number.

86256220235791 is a deficient number, since it is larger than the sum of its proper divisors (1).

86256220235791 is an equidigital number, since it uses as much as digits as its factorization.

86256220235791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 86256220235791 in words is "eighty-six trillion, two hundred fifty-six billion, two hundred twenty million, two hundred thirty-five thousand, seven hundred ninety-one".