2681349616044 has 72 divisors (see below), whose sum is σ = 7395419583552. Its totient is φ = 812376902880.

The previous prime is 2681349616009. The next prime is 2681349616061. The reversal of 2681349616044 is 4406169431862.

2681349616044 is a `hidden beast` number, since 2 + 6 + 8 + 13 + 4 + 9 + 616 + 0 + 4 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1471887 + ... + 2743929.

Almost surely, 2^{2681349616044} is an apocalyptic number.

It is an amenable number.

2681349616044 is an abundant number, since it is smaller than the sum of its proper divisors (4714069967508).

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

2681349616044 is a wasteful number, since it uses less digits than its factorization.

2681349616044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277387 (or 1277382 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 2681349616044 in words is "two trillion, six hundred eighty-one billion, three hundred forty-nine million, six hundred sixteen thousand, forty-four".