11937983221563 has 16 divisors (see below), whose sum is σ = 18818495719680. Its totient is φ = 6586473501216.

The previous prime is 11937983221559. The next prime is 11937983221607. The reversal of 11937983221563 is 36512238973911.

It is not a de Polignac number, because 11937983221563 - 2² = 11937983221559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11937983221497 and 11937983221506.

It is not an unprimeable number, because it can be changed into a prime (11937983221553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9801299245 + ... + 9801300462.

It is an arithmetic number, because the mean of its divisors is an integer number (1176155982480).

Almost surely, 2^{11937983221563} is an apocalyptic number.

11937983221563 is a deficient number, since it is larger than the sum of its proper divisors (6880512498117).

11937983221563 is a wasteful number, since it uses less digits than its factorization.

11937983221563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19602599746.

The product of its digits is 14696640, while the sum is 60.

The spelling of 11937983221563 in words is "eleven trillion, nine hundred thirty-seven billion, nine hundred eighty-three million, two hundred twenty-one thousand, five hundred sixty-three".