2231889765 has 32 divisors (see below), whose sum is σ = 4191479040. Its totient is φ = 992715264.

The previous prime is 2231889763. The next prime is 2231889767. The reversal of 2231889765 is 5679881322.

It is an interprime number because it is at equal distance from previous prime (2231889763) and next prime (2231889767).

It is not a de Polignac number, because 2231889765 - 2¹ = 2231889763 is a prime.

It is a super-3 number, since 3×2231889765³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231889763) 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 31 ways as a sum of consecutive naturals, for example, 283360 + ... + 291129.

It is an arithmetic number, because the mean of its divisors is an integer number (130983720).

Almost surely, 2^2231889765 is an apocalyptic number.

It is an amenable number.

2231889765 is a deficient number, since it is larger than the sum of its proper divisors (1959589275).

2231889765 is a wasteful number, since it uses less digits than its factorization.

2231889765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574541.

The product of its digits is 1451520, while the sum is 51.

The square root of 2231889765 is about 47242.8805747490. The cubic root of 2231889765 is about 1306.8455003552.

The spelling of 2231889765 in words is "two billion, two hundred thirty-one million, eight hundred eighty-nine thousand, seven hundred sixty-five".