2731517312 has 16 divisors (see below), whose sum is σ = 5441694900. Its totient is φ = 1365758592.

The previous prime is 2731517263. The next prime is 2731517357. The reversal of 2731517312 is 2137151372.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×2731517312² = 14922373651511410688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10669862 + ... + 10670117.

Almost surely, 2^2731517312 is an apocalyptic number.

It is an amenable number.

2731517312 is a deficient number, since it is larger than the sum of its proper divisors (2710177588).

2731517312 is an equidigital number, since it uses as much as digits as its factorization.

2731517312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21339993 (or 21339981 counting only the distinct ones).

The product of its digits is 8820, while the sum is 32.

The square root of 2731517312 is about 52263.9197917646. The cubic root of 2731517312 is about 1397.8738666241.

Adding to 2731517312 its reverse (2137151372), we get a palindrome (4868668684).

The spelling of 2731517312 in words is "two billion, seven hundred thirty-one million, five hundred seventeen thousand, three hundred twelve".