2721135868 has 12 divisors (see below), whose sum is σ = 5194895832. Its totient is φ = 1236879920.

The previous prime is 2721135853. The next prime is 2721135877. The reversal of 2721135868 is 8685311272.

2721135868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2721135868² = 14809160824232226848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30921955 + ... + 30922042.

It is an arithmetic number, because the mean of its divisors is an integer number (432907986).

Almost surely, 2^2721135868 is an apocalyptic number.

It is an amenable number.

2721135868 is a deficient number, since it is larger than the sum of its proper divisors (2473759964).

2721135868 is a wasteful number, since it uses less digits than its factorization.

2721135868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61844012 (or 61844010 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 2721135868 is about 52164.5077423338. The cubic root of 2721135868 is about 1396.1006918282.

The spelling of 2721135868 in words is "two billion, seven hundred twenty-one million, one hundred thirty-five thousand, eight hundred sixty-eight".