2187992295552 has 128 divisors (see below), whose sum is σ = 6642677865600. Its totient is φ = 625088102400.

The previous prime is 2187992295523. The next prime is 2187992295581. The reversal of 2187992295552 is 2555922997812.

It is an interprime number because it is at equal distance from previous prime (2187992295523) and next prime (2187992295581).

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

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, 41177802 + ... + 41230902.

It is an arithmetic number, because the mean of its divisors is an integer number (51895920825).

Almost surely, 2^{2187992295552} is an apocalyptic number.

It is an amenable number.

2187992295552 is an abundant number, since it is smaller than the sum of its proper divisors (4454685570048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2187992295552 is a wasteful number, since it uses less digits than its factorization.

2187992295552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68454 (or 68442 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 66.

The spelling of 2187992295552 in words is "two trillion, one hundred eighty-seven billion, nine hundred ninety-two million, two hundred ninety-five thousand, five hundred fifty-two".