2731605676681 has 16 divisors (see below), whose sum is σ = 3223659479040. Its totient is φ = 2265060482640.

The previous prime is 2731605676651. The next prime is 2731605676729. The reversal of 2731605676681 is 1866765061372.

It is a cyclic number.

It is not a de Polignac number, because 2731605676681 - 2⁵ = 2731605676649 is a prime.

It is a super-2 number, since 2×2731605676681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2731605676621) 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, 1561441 + ... + 2810926.

It is an arithmetic number, because the mean of its divisors is an integer number (201478717440).

Almost surely, 2^{2731605676681} is an apocalyptic number.

It is an amenable number.

2731605676681 is a deficient number, since it is larger than the sum of its proper divisors (492053802359).

2731605676681 is a wasteful number, since it uses less digits than its factorization.

2731605676681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375284.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 2731605676681 in words is "two trillion, seven hundred thirty-one billion, six hundred five million, six hundred seventy-six thousand, six hundred eighty-one".