2231787316 has 24 divisors (see below), whose sum is σ = 4262279616. Its totient is φ = 1014069120.

The previous prime is 2231787293. The next prime is 2231787373. The reversal of 2231787316 is 6137871322.

It is a happy number.

It is a super-3 number, since 3×2231787316³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133665 + ... + 149431.

It is an arithmetic number, because the mean of its divisors is an integer number (177594984).

Almost surely, 2^2231787316 is an apocalyptic number.

It is an amenable number.

2231787316 is a deficient number, since it is larger than the sum of its proper divisors (2030492300).

2231787316 is a wasteful number, since it uses less digits than its factorization.

2231787316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18999 (or 18997 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 2231787316 is about 47241.7962825293. The cubic root of 2231787316 is about 1306.8255042865.

The spelling of 2231787316 in words is "two billion, two hundred thirty-one million, seven hundred eighty-seven thousand, three hundred sixteen".