2187077538 has 16 divisors (see below), whose sum is σ = 4374757440. Its totient is φ = 728925456.

The previous prime is 2187077537. The next prime is 2187077561. The reversal of 2187077538 is 8357707812.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2187077531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32148 + ... + 73536.

It is an arithmetic number, because the mean of its divisors is an integer number (273422340).

Almost surely, 2^2187077538 is an apocalyptic number.

2187077538 is an abundant number, since it is smaller than the sum of its proper divisors (2187679902).

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

2187077538 is a wasteful number, since it uses less digits than its factorization.

2187077538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50201.

The product of its (nonzero) digits is 658560, while the sum is 48.

The square root of 2187077538 is about 46766.2008078484. The cubic root of 2187077538 is about 1298.0399531704.

The spelling of 2187077538 in words is "two billion, one hundred eighty-seven million, seventy-seven thousand, five hundred thirty-eight".