11621127563 has 32 divisors (see below), whose sum is σ = 12697896960. Its totient is φ = 10595200000.

The previous prime is 11621127559. The next prime is 11621127571. The reversal of 11621127563 is 36572112611.

It is a happy number.

11621127563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11621127563 - 2² = 11621127559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621127523) 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 31 ways as a sum of consecutive naturals, for example, 26962958 + ... + 26963388.

It is an arithmetic number, because the mean of its divisors is an integer number (396809280).

Almost surely, 2^11621127563 is an apocalyptic number.

11621127563 is a deficient number, since it is larger than the sum of its proper divisors (1076769397).

11621127563 is a wasteful number, since it uses less digits than its factorization.

11621127563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859.

The product of its digits is 15120, while the sum is 35.

The spelling of 11621127563 in words is "eleven billion, six hundred twenty-one million, one hundred twenty-seven thousand, five hundred sixty-three".