2698328590281 has 81 divisors (see below), whose sum is σ = 4282331318343. Its totient is φ = 1636876840320.

The previous prime is 2698328590273. The next prime is 2698328590297. The reversal of 2698328590281 is 1820958238962.

The square root of 2698328590281 is 1642659.

It is a perfect power (a square), and thus also a powerful number.

2698328590281 is a `hidden beast` number, since 2 + 6 + 9 + 8 + 32 + 8 + 590 + 2 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2100774854025 + 597553736256 = 1449405^2 + 773016^2 .

It is not a de Polignac number, because 2698328590281 - 2³ = 2698328590273 is a prime.

It is a super-2 number, since 2×2698328590281² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2698328590241) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2597043360 + ... + 2597044398.

Almost surely, 2^{2698328590281} is an apocalyptic number.

2698328590281 is the 1642659-th square number.

2698328590281 is the 821330-th centered octagonal number.

It is an amenable number.

2698328590281 is a deficient number, since it is larger than the sum of its proper divisors (1584002728062).

2698328590281 is an equidigital number, since it uses as much as digits as its factorization.

2698328590281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 2698328590281 in words is "two trillion, six hundred ninety-eight billion, three hundred twenty-eight million, five hundred ninety thousand, two hundred eighty-one".