86634000493 has 2 divisors, whose sum is σ = 86634000494. Its totient is φ = 86634000492.

The previous prime is 86634000473. The next prime is 86634000521. The reversal of 86634000493 is 39400043668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58410672489 + 28223328004 = 241683^2 + 167998^2 .

It is a cyclic number.

It is not a de Polignac number, because 86634000493 - 2²⁵ = 86600446061 is a prime.

It is a super-2 number, since 2×86634000493² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86634000413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43317000246 + 43317000247.

It is an arithmetic number, because the mean of its divisors is an integer number (43317000247).

Almost surely, 2^86634000493 is an apocalyptic number.

It is an amenable number.

86634000493 is a deficient number, since it is larger than the sum of its proper divisors (1).

86634000493 is an equidigital number, since it uses as much as digits as its factorization.

86634000493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 86634000493 in words is "eighty-six billion, six hundred thirty-four million, four hundred ninety-three", and thus it is an aban number.