2734926821 has 8 divisors (see below), whose sum is σ = 3008215488. Its totient is φ = 2486295900.

The previous prime is 2734926811. The next prime is 2734926841. The reversal of 2734926821 is 1286294372.

2734926821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2734926821 - 2¹⁸ = 2734664677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2734926811) 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, 1026065 + ... + 1028726.

It is an arithmetic number, because the mean of its divisors is an integer number (376026936).

Almost surely, 2^2734926821 is an apocalyptic number.

It is an amenable number.

2734926821 is a deficient number, since it is larger than the sum of its proper divisors (273288667).

2734926821 is an equidigital number, since it uses as much as digits as its factorization.

2734926821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054824 (or 2054802 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 2734926821 is about 52296.5278101711. The cubic root of 2734926821 is about 1398.4552384823.

The spelling of 2734926821 in words is "two billion, seven hundred thirty-four million, nine hundred twenty-six thousand, eight hundred twenty-one".