11543002461 has 12 divisors (see below), whose sum is σ = 16678365600. Its totient is φ = 7692962760.

The previous prime is 11543002421. The next prime is 11543002463. The reversal of 11543002461 is 16420034511.

It is a happy number.

11543002461 is a `hidden beast` number, since 115 + 4 + 300 + 246 + 1 = 666.

It is not a de Polignac number, because 11543002461 - 2¹⁸ = 11542740317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543002463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166611 + ... + 225488.

It is an arithmetic number, because the mean of its divisors is an integer number (1389863800).

Almost surely, 2^11543002461 is an apocalyptic number.

It is an amenable number.

11543002461 is a deficient number, since it is larger than the sum of its proper divisors (5135363139).

11543002461 is a wasteful number, since it uses less digits than its factorization.

11543002461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395376 (or 395373 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 11543002461 its reverse (16420034511), we get a palindrome (27963036972).

The spelling of 11543002461 in words is "eleven billion, five hundred forty-three million, two thousand, four hundred sixty-one".