2721356923 has 8 divisors (see below), whose sum is σ = 2909413728. Its totient is φ = 2536408704.

The previous prime is 2721356863. The next prime is 2721356929. The reversal of 2721356923 is 3296531272.

2721356923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2721356923 - 2⁹ = 2721356411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2721356929) 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, 775336 + ... + 778837.

It is an arithmetic number, because the mean of its divisors is an integer number (363676716).

Almost surely, 2^2721356923 is an apocalyptic number.

2721356923 is a deficient number, since it is larger than the sum of its proper divisors (188056805).

2721356923 is a wasteful number, since it uses less digits than its factorization.

2721356923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554293.

The product of its digits is 136080, while the sum is 40.

The square root of 2721356923 is about 52166.6265250112. The cubic root of 2721356923 is about 1396.1384954877.

The spelling of 2721356923 in words is "two billion, seven hundred twenty-one million, three hundred fifty-six thousand, nine hundred twenty-three".