2188035598401 has 9 divisors (see below), whose sum is σ = 3160502274241. Its totient is φ = 1458687440532.

The previous prime is 2188035598387. The next prime is 2188035598423. The reversal of 2188035598401 is 1048955308812.

The square root of 2188035598401 is 1479201.

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

2188035598401 is a `hidden beast` number, since 2 + 1 + 8 + 8 + 0 + 3 + 5 + 598 + 40 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2188035598401 - 2⁵ = 2188035598369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2188035598471) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4191070 + ... + 4684136.

Almost surely, 2^{2188035598401} is an apocalyptic number.

2188035598401 is the 1479201-st square number.

2188035598401 is the 739601-st centered octagonal number.

It is an amenable number.

2188035598401 is a deficient number, since it is larger than the sum of its proper divisors (972466675840).

2188035598401 is an frugal number, since it uses more digits than its factorization.

2188035598401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986140 (or 493070 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 2188035598401 in words is "two trillion, one hundred eighty-eight billion, thirty-five million, five hundred ninety-eight thousand, four hundred one".