11888899973 has 2 divisors, whose sum is σ = 11888899974. Its totient is φ = 11888899972.

The previous prime is 11888899949. The next prime is 11888900017. The reversal of 11888899973 is 37999888811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10723223809 + 1165676164 = 103553^2 + 34142^2 .

It is a cyclic number.

It is not a de Polignac number, because 11888899973 - 2⁶ = 11888899909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11888899897 and 11888899906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11888899933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5944449986 + 5944449987.

It is an arithmetic number, because the mean of its divisors is an integer number (5944449987).

Almost surely, 2^11888899973 is an apocalyptic number.

It is an amenable number.

11888899973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11888899973 is an equidigital number, since it uses as much as digits as its factorization.

11888899973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62705664, while the sum is 71.

The spelling of 11888899973 in words is "eleven billion, eight hundred eighty-eight million, eight hundred ninety-nine thousand, nine hundred seventy-three".