11475005649 has 8 divisors (see below), whose sum is σ = 15323804832. Its totient is φ = 7638105120.

The previous prime is 11475005603. The next prime is 11475005657. The reversal of 11475005649 is 94650057411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11475005649 - 2¹¹ = 11475003601 is a prime.

It is a super-2 number, since 2×11475005649² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11475005649.

It is not an unprimeable number, because it can be changed into a prime (11475005669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2972412 + ... + 2976269.

It is an arithmetic number, because the mean of its divisors is an integer number (1915475604).

Almost surely, 2^11475005649 is an apocalyptic number.

It is an amenable number.

11475005649 is a deficient number, since it is larger than the sum of its proper divisors (3848799183).

11475005649 is an equidigital number, since it uses as much as digits as its factorization.

11475005649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949327.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 11475005649 in words is "eleven billion, four hundred seventy-five million, five thousand, six hundred forty-nine".