2160919431 has 16 divisors (see below), whose sum is σ = 3492395520. Its totient is φ = 1309647960.

The previous prime is 2160919421. The next prime is 2160919451. The reversal of 2160919431 is 1349190612.

It is a happy number.

2160919431 is a `hidden beast` number, since 2 + 1 + 609 + 1 + 9 + 43 + 1 = 666.

It is not a de Polignac number, because 2160919431 - 2⁶ = 2160919367 is a prime.

It is a super-2 number, since 2×2160919431² = 9339145574546727522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160919421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3637615 + ... + 3638208.

It is an arithmetic number, because the mean of its divisors is an integer number (218274720).

Almost surely, 2^2160919431 is an apocalyptic number.

2160919431 is a deficient number, since it is larger than the sum of its proper divisors (1331476089).

2160919431 is a wasteful number, since it uses less digits than its factorization.

2160919431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275843 (or 7275837 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 2160919431 is about 46485.6906047442. The cubic root of 2160919431 is about 1292.8442004126.

It can be divided in two parts, 216091 and 9431, that added together give a palindrome (225522).

The spelling of 2160919431 in words is "two billion, one hundred sixty million, nine hundred nineteen thousand, four hundred thirty-one".