10641898449 has 128 divisors (see below), whose sum is σ = 20343680000. Its totient is φ = 5459311872.

The previous prime is 10641898441. The next prime is 10641898549. The reversal of 10641898449 is 94489814601.

It is a happy number.

10641898449 is a `hidden beast` number, since 10 + 6 + 4 + 189 + 8 + 449 = 666.

It is not a de Polignac number, because 10641898449 - 2³ = 10641898441 is a prime.

It is a super-2 number, since 2×10641898449² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10641898395 and 10641898404.

It is not an unprimeable number, because it can be changed into a prime (10641898441) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4453347 + ... + 4455735.

It is an arithmetic number, because the mean of its divisors is an integer number (158935000).

Almost surely, 2^10641898449 is an apocalyptic number.

It is an amenable number.

10641898449 is a deficient number, since it is larger than the sum of its proper divisors (9701781551).

10641898449 is a wasteful number, since it uses less digits than its factorization.

10641898449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 2449 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 10641898449 in words is "ten billion, six hundred forty-one million, eight hundred ninety-eight thousand, four hundred forty-nine".