2731702345521 has 16 divisors (see below), whose sum is σ = 3834067107840. Its totient is φ = 1725241185360.

The previous prime is 2731702345451. The next prime is 2731702345543. The reversal of 2731702345521 is 1255432071372.

2731702345521 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 2731702345521 - 2¹¹ = 2731702343473 is a prime.

It is a super-2 number, since 2×2731702345521² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2731702345121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1685476 + ... + 2881706.

It is an arithmetic number, because the mean of its divisors is an integer number (239629194240).

Almost surely, 2^{2731702345521} is an apocalyptic number.

It is an amenable number.

2731702345521 is a deficient number, since it is larger than the sum of its proper divisors (1102364762319).

2731702345521 is a wasteful number, since it uses less digits than its factorization.

2731702345521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236316.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 2731702345521 in words is "two trillion, seven hundred thirty-one billion, seven hundred two million, three hundred forty-five thousand, five hundred twenty-one".