1888208522641 has 9 divisors (see below), whose sum is σ = 2196498654441. Its totient is φ = 1618456203252.

The previous prime is 1888208522623. The next prime is 1888208522699. The reversal of 1888208522641 is 1462258028881.

The square root of 1888208522641 is 1374121.

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

It is not a de Polignac number, because 1888208522641 - 2¹¹ = 1888208520593 is a prime.

It is a super-2 number, since 2×1888208522641² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1888208022641) 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, 9520696 + ... + 9716998.

It is an arithmetic number, because the mean of its divisors is an integer number (244055406049).

Almost surely, 2^{1888208522641} is an apocalyptic number.

1888208522641 is the 1374121-st square number.

1888208522641 is the 687061-st centered octagonal number.

It is an amenable number.

1888208522641 is a deficient number, since it is larger than the sum of its proper divisors (308290131800).

1888208522641 is an frugal number, since it uses more digits than its factorization.

1888208522641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392620 (or 196310 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 55.

The spelling of 1888208522641 in words is "one trillion, eight hundred eighty-eight billion, two hundred eight million, five hundred twenty-two thousand, six hundred forty-one".