2187035555000 has 40 divisors (see below), whose sum is σ = 5124224317080. Its totient is φ = 874814220000.

The previous prime is 2187035554967. The next prime is 2187035555017. The reversal of 2187035555000 is 5555307812.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 218698556 + ... + 218708555.

It is an arithmetic number, because the mean of its divisors is an integer number (128105607927).

Almost surely, 2^{2187035555000} is an apocalyptic number.

2187035555000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2187035555000 is an abundant number, since it is smaller than the sum of its proper divisors (2937188762080).

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

2187035555000 is an equidigital number, since it uses as much as digits as its factorization.

2187035555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437407137 (or 437407118 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 2187035555000 in words is "two trillion, one hundred eighty-seven billion, thirty-five million, five hundred fifty-five thousand".