11644097249 has 16 divisors (see below), whose sum is σ = 12429392976. Its totient is φ = 10870272000.

The previous prime is 11644097239. The next prime is 11644097251. The reversal of 11644097249 is 94279044611.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 396010000 + 11248087249 = 19900^2 + 106057^2 .

It is a cyclic number.

It is not a de Polignac number, because 11644097249 - 2⁴ = 11644097233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11644097239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1229159 + ... + 1238595.

It is an arithmetic number, because the mean of its divisors is an integer number (776837061).

Almost surely, 2^11644097249 is an apocalyptic number.

It is an amenable number.

11644097249 is a deficient number, since it is larger than the sum of its proper divisors (785295727).

11644097249 is a wasteful number, since it uses less digits than its factorization.

11644097249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10036.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 11644097249 in words is "eleven billion, six hundred forty-four million, ninety-seven thousand, two hundred forty-nine".