2721667036 has 18 divisors (see below), whose sum is σ = 5235273680. Its totient is φ = 1237121160.

The previous prime is 2721667001. The next prime is 2721667049. The reversal of 2721667036 is 6307661272.

It is a self number, because there is not a number n which added to its sum of digits gives 2721667036.

It is a congruent number.

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 in 5 ways as a sum of consecutive naturals, for example, 2811156 + ... + 2812123.

Almost surely, 2^2721667036 is an apocalyptic number.

It is an amenable number.

2721667036 is a deficient number, since it is larger than the sum of its proper divisors (2513606644).

2721667036 is a wasteful number, since it uses less digits than its factorization.

2721667036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5623305 (or 5623292 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 2721667036 is about 52169.5987716984. The cubic root of 2721667036 is about 1396.1915259262.

The spelling of 2721667036 in words is "two billion, seven hundred twenty-one million, six hundred sixty-seven thousand, thirty-six".