8526986749 has 2 divisors, whose sum is σ = 8526986750. Its totient is φ = 8526986748.

The previous prime is 8526986729. The next prime is 8526986851. The reversal of 8526986749 is 9476896258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7345689849 + 1181296900 = 85707^2 + 34370^2 .

It is a cyclic number.

It is not a de Polignac number, because 8526986749 - 2⁵ = 8526986717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8526986729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4263493374 + 4263493375.

It is an arithmetic number, because the mean of its divisors is an integer number (4263493375).

Almost surely, 2^8526986749 is an apocalyptic number.

It is an amenable number.

8526986749 is a deficient number, since it is larger than the sum of its proper divisors (1).

8526986749 is an equidigital number, since it uses as much as digits as its factorization.

8526986749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 64.

The square root of 8526986749 is about 92341.6847853666. The cubic root of 8526986749 is about 2042.9850849609.

The spelling of 8526986749 in words is "eight billion, five hundred twenty-six million, nine hundred eighty-six thousand, seven hundred forty-nine".