11537074449 has 6 divisors (see below), whose sum is σ = 16664663106. Its totient is φ = 7691382960.

The previous prime is 11537074433. The next prime is 11537074457. The reversal of 11537074449 is 94447073511.

It is a happy number.

11537074449 is a `hidden beast` number, since 1 + 1 + 537 + 0 + 74 + 4 + 49 = 666.

11537074449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6473328849 + 5063745600 = 80457^2 + 71160^2 .

It is not a de Polignac number, because 11537074449 - 2⁴ = 11537074433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11537474449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 640948572 + ... + 640948589.

It is an arithmetic number, because the mean of its divisors is an integer number (2777443851).

Almost surely, 2^11537074449 is an apocalyptic number.

It is an amenable number.

11537074449 is a deficient number, since it is larger than the sum of its proper divisors (5127588657).

11537074449 is a wasteful number, since it uses less digits than its factorization.

11537074449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281897167 (or 1281897164 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 11537074449 in words is "eleven billion, five hundred thirty-seven million, seventy-four thousand, four hundred forty-nine".