2188906004529 has 48 divisors (see below), whose sum is σ = 3490227366912. Its totient is φ = 1316179597824.

The previous prime is 2188906004479. The next prime is 2188906004531. The reversal of 2188906004529 is 9254006098812.

It is a happy number.

2188906004529 is a `hidden beast` number, since 2 + 1 + 8 + 8 + 9 + 0 + 600 + 4 + 5 + 29 = 666.

It is not a de Polignac number, because 2188906004529 - 2¹⁵ = 2188905971761 is a prime.

It is a super-2 number, since 2×2188906004529² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2188906004599) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2790097 + ... + 3487470.

It is an arithmetic number, because the mean of its divisors is an integer number (72713070144).

Almost surely, 2^{2188906004529} is an apocalyptic number.

It is an amenable number.

2188906004529 is a deficient number, since it is larger than the sum of its proper divisors (1301321362383).

2188906004529 is a wasteful number, since it uses less digits than its factorization.

2188906004529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6277686 (or 6277683 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 2188906004529 in words is "two trillion, one hundred eighty-eight billion, nine hundred six million, four thousand, five hundred twenty-nine".