10651684849 has 27 divisors (see below), whose sum is σ = 12278750817. Its totient is φ = 9234136704.

The previous prime is 10651684819. The next prime is 10651684873. The reversal of 10651684849 is 94848615601.

The square root of 10651684849 is 103207.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 96177249 + 10555507600 = 9807^2 + 102740^2 .

It is not a de Polignac number, because 10651684849 - 2¹⁹ = 10651160561 is a prime.

It is a super-2 number, since 2×10651684849² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10651684796 and 10651684805.

It is not an unprimeable number, because it can be changed into a prime (10651684819) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22808514 + ... + 22808980.

Almost surely, 2^10651684849 is an apocalyptic number.

10651684849 is the 103207-th square number.

10651684849 is the 51604-th centered octagonal number.

It is an amenable number.

10651684849 is a deficient number, since it is larger than the sum of its proper divisors (1627065968).

10651684849 is an frugal number, since it uses more digits than its factorization.

10651684849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 10651684849 in words is "ten billion, six hundred fifty-one million, six hundred eighty-four thousand, eight hundred forty-nine".