2731661326356 has 12 divisors (see below), whose sum is σ = 6373876428192. Its totient is φ = 910553775448.

The previous prime is 2731661326333. The next prime is 2731661326417. The reversal of 2731661326356 is 6536231661372.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2731661326356² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2731661326299 and 2731661326308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113819221920 + ... + 113819221943.

It is an arithmetic number, because the mean of its divisors is an integer number (531156369016).

Almost surely, 2^{2731661326356} is an apocalyptic number.

It is an amenable number.

2731661326356 is an abundant number, since it is smaller than the sum of its proper divisors (3642215101836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2731661326356 is a wasteful number, since it uses less digits than its factorization.

2731661326356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227638443870 (or 227638443868 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 51.

The spelling of 2731661326356 in words is "two trillion, seven hundred thirty-one billion, six hundred sixty-one million, three hundred twenty-six thousand, three hundred fifty-six".