2731661372 has 24 divisors (see below), whose sum is σ = 5242309632. Its totient is φ = 1235159600.

The previous prime is 2731661353. The next prime is 2731661377.

2731661372 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731661377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154118 + ... + 170925.

It is an arithmetic number, because the mean of its divisors is an integer number (218429568).

Almost surely, 2^2731661372 is an apocalyptic number.

2731661372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2731661372 is a deficient number, since it is larger than the sum of its proper divisors (2510648260).

2731661372 is a wasteful number, since it uses less digits than its factorization.

2731661372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325249 (or 325247 counting only the distinct ones).

The product of its digits is 63504, while the sum is 38.

The square root of 2731661372 is about 52265.2979710247. The cubic root of 2731661372 is about 1397.8984407767.

It can be divided in two parts, 27316 and 61372, that added together give a palindrome (88688).

The spelling of 2731661372 in words is "two billion, seven hundred thirty-one million, six hundred sixty-one thousand, three hundred seventy-two".