2151203888999 has 16 divisors (see below), whose sum is σ = 2349624926880. Its totient is φ = 1953260400000.

The previous prime is 2151203888989. The next prime is 2151203889007. The reversal of 2151203888999 is 9998883021512.

It is a cyclic number.

It is not a de Polignac number, because 2151203888999 - 2⁴ = 2151203888983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151203888989) 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, 33011549 + ... + 33076649.

It is an arithmetic number, because the mean of its divisors is an integer number (146851557930).

Almost surely, 2^{2151203888999} is an apocalyptic number.

2151203888999 is a deficient number, since it is larger than the sum of its proper divisors (198421037881).

2151203888999 is a wasteful number, since it uses less digits than its factorization.

2151203888999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68722.

The product of its (nonzero) digits is 22394880, while the sum is 65.

The spelling of 2151203888999 in words is "two trillion, one hundred fifty-one billion, two hundred three million, eight hundred eighty-eight thousand, nine hundred ninety-nine".