86870092549 has 2 divisors, whose sum is σ = 86870092550. Its totient is φ = 86870092548.

The previous prime is 86870092523. The next prime is 86870092559. The reversal of 86870092549 is 94529007868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84024616900 + 2845475649 = 289870^2 + 53343^2 .

It is a cyclic number.

It is not a de Polignac number, because 86870092549 - 2¹⁵ = 86870059781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86870092493 and 86870092502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86870092559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43435046274 + 43435046275.

It is an arithmetic number, because the mean of its divisors is an integer number (43435046275).

Almost surely, 2^86870092549 is an apocalyptic number.

It is an amenable number.

86870092549 is a deficient number, since it is larger than the sum of its proper divisors (1).

86870092549 is an equidigital number, since it uses as much as digits as its factorization.

86870092549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 86870092549 in words is "eighty-six billion, eight hundred seventy million, ninety-two thousand, five hundred forty-nine".