2689471431 has 20 divisors (see below), whose sum is σ = 4020878400. Its totient is φ = 1791520416.

The previous prime is 2689471403. The next prime is 2689471439. The reversal of 2689471431 is 1341749862.

2689471431 is a `hidden beast` number, since 2 + 68 + 94 + 71 + 431 = 666.

It is not a de Polignac number, because 2689471431 - 2¹³ = 2689463239 is a prime.

It is a super-2 number, since 2×2689471431² = 14466513156330375522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689471439) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 91530 + ... + 117288.

It is an arithmetic number, because the mean of its divisors is an integer number (201043920).

Almost surely, 2^2689471431 is an apocalyptic number.

2689471431 is a deficient number, since it is larger than the sum of its proper divisors (1331406969).

2689471431 is a wasteful number, since it uses less digits than its factorization.

2689471431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27060 (or 27051 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2689471431 is about 51860.1140665926. The cubic root of 2689471431 is about 1390.6643186870.

The spelling of 2689471431 in words is "two billion, six hundred eighty-nine million, four hundred seventy-one thousand, four hundred thirty-one".