10187563549 has 2 divisors, whose sum is σ = 10187563550. Its totient is φ = 10187563548.

The previous prime is 10187563517. The next prime is 10187563597. The reversal of 10187563549 is 94536578101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10021411449 + 166152100 = 100107^2 + 12890^2 .

It is a cyclic number.

It is not a de Polignac number, because 10187563549 - 2⁵ = 10187563517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10187563049) 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, 5093781774 + 5093781775.

It is an arithmetic number, because the mean of its divisors is an integer number (5093781775).

Almost surely, 2^10187563549 is an apocalyptic number.

It is an amenable number.

10187563549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10187563549 is an equidigital number, since it uses as much as digits as its factorization.

10187563549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 10187563549 in words is "ten billion, one hundred eighty-seven million, five hundred sixty-three thousand, five hundred forty-nine".