2721867321136 has 20 divisors (see below), whose sum is σ = 5273670244752. Its totient is φ = 1360920161216.

The previous prime is 2721867321133. The next prime is 2721867321137. The reversal of 2721867321136 is 6311237681272.

It is a self number, because there is not a number n which added to its sum of digits gives 2721867321136.

It is not an unprimeable number, because it can be changed into a prime (2721867321133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933126 + ... + 2512858.

Almost surely, 2^{2721867321136} is an apocalyptic number.

It is an amenable number.

2721867321136 is a deficient number, since it is larger than the sum of its proper divisors (2551802923616).

2721867321136 is a wasteful number, since it uses less digits than its factorization.

2721867321136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687428 (or 1687422 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The spelling of 2721867321136 in words is "two trillion, seven hundred twenty-one billion, eight hundred sixty-seven million, three hundred twenty-one thousand, one hundred thirty-six".