2231857334487 has 16 divisors (see below), whose sum is σ = 3252043307520. Its totient is φ = 1350263572800.

The previous prime is 2231857334477. The next prime is 2231857334521. The reversal of 2231857334487 is 7844337581322.

It is a happy number.

It is not a de Polignac number, because 2231857334487 - 2⁶ = 2231857334423 is a prime.

It is a super-3 number, since 3×2231857334487³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231857334467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59411839 + ... + 59449392.

It is an arithmetic number, because the mean of its divisors is an integer number (203252706720).

Almost surely, 2^{2231857334487} is an apocalyptic number.

2231857334487 is a deficient number, since it is larger than the sum of its proper divisors (1020185973033).

2231857334487 is a wasteful number, since it uses less digits than its factorization.

2231857334487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118861814.

The product of its digits is 27095040, while the sum is 57.

The spelling of 2231857334487 in words is "two trillion, two hundred thirty-one billion, eight hundred fifty-seven million, three hundred thirty-four thousand, four hundred eighty-seven".