2187672538231 has 8 divisors (see below), whose sum is σ = 2208064997600. Its totient is φ = 2167285934880.

The previous prime is 2187672538201. The next prime is 2187672538277. The reversal of 2187672538231 is 1328352767812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2187672538231 - 2¹⁷ = 2187672407159 is a prime.

It is a super-2 number, since 2×2187672538231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187672538201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711576 + ... + 2209453.

It is an arithmetic number, because the mean of its divisors is an integer number (276008124700).

Almost surely, 2^{2187672538231} is an apocalyptic number.

2187672538231 is a deficient number, since it is larger than the sum of its proper divisors (20392459369).

2187672538231 is a wasteful number, since it uses less digits than its factorization.

2187672538231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928009.

The product of its digits is 6773760, while the sum is 55.

The spelling of 2187672538231 in words is "two trillion, one hundred eighty-seven billion, six hundred seventy-two million, five hundred thirty-eight thousand, two hundred thirty-one".