11341961649 has 12 divisors (see below), whose sum is σ = 16440727056. Its totient is φ = 7534587672.

The previous prime is 11341961639. The next prime is 11341961671. The reversal of 11341961649 is 94616914311.

11341961649 is a `hidden beast` number, since 1 + 13 + 4 + 19 + 616 + 4 + 9 = 666.

It is not a de Polignac number, because 11341961649 - 2¹⁶ = 11341896113 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11341961639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2223987 + ... + 2229080.

It is an arithmetic number, because the mean of its divisors is an integer number (1370060588).

Almost surely, 2^11341961649 is an apocalyptic number.

It is an amenable number.

11341961649 is a deficient number, since it is larger than the sum of its proper divisors (5098765407).

11341961649 is a wasteful number, since it uses less digits than its factorization.

11341961649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453356 (or 4453353 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 11341961649 in words is "eleven billion, three hundred forty-one million, nine hundred sixty-one thousand, six hundred forty-nine".