2681328073728 has 44 divisors (see below), whose sum is σ = 7146716892200. Its totient is φ = 893776023552.

The previous prime is 2681328073631. The next prime is 2681328073759. The reversal of 2681328073728 is 8273708231862.

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, 436411003 + ... + 436417146.

Almost surely, 2^{2681328073728} is an apocalyptic number.

It is an amenable number.

2681328073728 is an abundant number, since it is smaller than the sum of its proper divisors (4465388818472).

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

2681328073728 is an equidigital number, since it uses as much as digits as its factorization.

2681328073728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872828172 (or 872828154 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 2681328073728 in words is "two trillion, six hundred eighty-one billion, three hundred twenty-eight million, seventy-three thousand, seven hundred twenty-eight".