2734031247021 has 12 divisors (see below), whose sum is σ = 3949204594972. Its totient is φ = 1822665182976.

The previous prime is 2734031247011. The next prime is 2734031247029. The reversal of 2734031247021 is 1207421304372.

2734031247021 is a `hidden beast` number, since 2 + 7 + 3 + 403 + 1 + 247 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2634976274121 + 99054972900 = 1623261^2 + 314730^2 .

It is not a de Polignac number, because 2734031247021 - 2³⁰ = 2732957505197 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 (2734031247029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1065796 + ... + 2569821.

Almost surely, 2^{2734031247021} is an apocalyptic number.

It is an amenable number.

2734031247021 is a deficient number, since it is larger than the sum of its proper divisors (1215173347951).

2734031247021 is a wasteful number, since it uses less digits than its factorization.

2734031247021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719180 (or 3719177 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 2734031247021 in words is "two trillion, seven hundred thirty-four billion, thirty-one million, two hundred forty-seven thousand, twenty-one".