2729881292 has 6 divisors (see below), whose sum is σ = 4777292268. Its totient is φ = 1364940644.

The previous prime is 2729881289. The next prime is 2729881309. The reversal of 2729881292 is 2921889272.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2729881292.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341235158 + ... + 341235165.

It is an arithmetic number, because the mean of its divisors is an integer number (796215378).

Almost surely, 2^2729881292 is an apocalyptic number.

It is an amenable number.

2729881292 is a deficient number, since it is larger than the sum of its proper divisors (2047410976).

2729881292 is a wasteful number, since it uses less digits than its factorization.

2729881292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682470327 (or 682470325 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The square root of 2729881292 is about 52248.2659233778. The cubic root of 2729881292 is about 1397.5947291733.

The spelling of 2729881292 in words is "two billion, seven hundred twenty-nine million, eight hundred eighty-one thousand, two hundred ninety-two".