2723475635021 has 2 divisors, whose sum is σ = 2723475635022. Its totient is φ = 2723475635020.

The previous prime is 2723475635009. The next prime is 2723475635063. The reversal of 2723475635021 is 1205365743272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2723443881796 + 31753225 = 1650286^2 + 5635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2723475635021 - 2³⁸ = 2448597728077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2723475635921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361737817510 + 1361737817511.

It is an arithmetic number, because the mean of its divisors is an integer number (1361737817511).

Almost surely, 2^{2723475635021} is an apocalyptic number.

It is an amenable number.

2723475635021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2723475635021 is an equidigital number, since it uses as much as digits as its factorization.

2723475635021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 2723475635021 in words is "two trillion, seven hundred twenty-three billion, four hundred seventy-five million, six hundred thirty-five thousand, twenty-one".