86321241623531 has 2 divisors, whose sum is σ = 86321241623532. Its totient is φ = 86321241623530.

The previous prime is 86321241623467. The next prime is 86321241623543. The reversal of 86321241623531 is 13532614212368.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86321241623531 - 2⁶ = 86321241623467 is a prime.

It is a super-2 number, since 2×86321241623531² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86321241623131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43160620811765 + 43160620811766.

It is an arithmetic number, because the mean of its divisors is an integer number (43160620811766).

Almost surely, 2^{86321241623531} is an apocalyptic number.

86321241623531 is a deficient number, since it is larger than the sum of its proper divisors (1).

86321241623531 is an equidigital number, since it uses as much as digits as its factorization.

86321241623531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 47.

Adding to 86321241623531 its reverse (13532614212368), we get a palindrome (99853855835899).

The spelling of 86321241623531 in words is "eighty-six trillion, three hundred twenty-one billion, two hundred forty-one million, six hundred twenty-three thousand, five hundred thirty-one".