10490194666449 has 45 divisors (see below), whose sum is σ = 16647343763457. Its totient is φ = 6581771997696.

The previous prime is 10490194666439. The next prime is 10490194666531. The reversal of 10490194666449 is 94466649109401.

The square root of 10490194666449 is 3238857.

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 6596550140625 + 3893644525824 = 2568375^2 + 1973232^2 .

It is not a de Polignac number, because 10490194666449 - 2³⁵ = 10455834928081 is a prime.

It is a super-2 number, since 2×10490194666449² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10490194666439) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 495534537 + ... + 495555705.

Almost surely, 2^{10490194666449} is an apocalyptic number.

10490194666449 is the 3238857-th square number.

10490194666449 is the 1619429-th centered octagonal number.

It is an amenable number.

10490194666449 is a deficient number, since it is larger than the sum of its proper divisors (6157149097008).

10490194666449 is an frugal number, since it uses more digits than its factorization.

10490194666449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42384 (or 21189 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 10490194666449 in words is "ten trillion, four hundred ninety billion, one hundred ninety-four million, six hundred sixty-six thousand, four hundred forty-nine".