2154006332187 has 16 divisors (see below), whose sum is σ = 2915447377920. Its totient is φ = 1414447447392.

The previous prime is 2154006332119. The next prime is 2154006332227. The reversal of 2154006332187 is 7812336004512.

It is not a de Polignac number, because 2154006332187 - 2¹¹ = 2154006330139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2154006332287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20283588 + ... + 20389505.

It is an arithmetic number, because the mean of its divisors is an integer number (182215461120).

Almost surely, 2^{2154006332187} is an apocalyptic number.

2154006332187 is a deficient number, since it is larger than the sum of its proper divisors (761441045733).

2154006332187 is a wasteful number, since it uses less digits than its factorization.

2154006332187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40673362.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 2154006332187 in words is "two trillion, one hundred fifty-four billion, six million, three hundred thirty-two thousand, one hundred eighty-seven".