2731117280 has 24 divisors (see below), whose sum is σ = 6452264952. Its totient is φ = 1092446848.

The previous prime is 2731117273. The next prime is 2731117289. The reversal of 2731117280 is 827111372.

It is a super-2 number, since 2×2731117280² = 14918003194229196800, 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 not an unprimeable number, because it can be changed into a prime (2731117289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8534582 + ... + 8534901.

It is an arithmetic number, because the mean of its divisors is an integer number (268844373).

Almost surely, 2^2731117280 is an apocalyptic number.

2731117280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2731117280 is an abundant number, since it is smaller than the sum of its proper divisors (3721147672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2731117280 is a wasteful number, since it uses less digits than its factorization.

2731117280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17069498 (or 17069490 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 2731117280 is about 52260.0926137717. The cubic root of 2731117280 is about 1397.8056235300.

The spelling of 2731117280 in words is "two billion, seven hundred thirty-one million, one hundred seventeen thousand, two hundred eighty".