2388511521361 has 9 divisors (see below), whose sum is σ = 2778485170761. Its totient is φ = 2047286316852.

The previous prime is 2388511521289. The next prime is 2388511521419. The reversal of 2388511521361 is 1631251158832.

The square root of 2388511521361 is 1545481.

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

It is not a de Polignac number, because 2388511521361 - 2²⁷ = 2388377303633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2388511521961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10707976 + ... + 10928758.

It is an arithmetic number, because the mean of its divisors is an integer number (308720574529).

Almost surely, 2^{2388511521361} is an apocalyptic number.

2388511521361 is the 1545481-st square number.

2388511521361 is the 772741-st centered octagonal number.

It is an amenable number.

2388511521361 is a deficient number, since it is larger than the sum of its proper divisors (389973649400).

2388511521361 is an frugal number, since it uses more digits than its factorization.

2388511521361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441580 (or 220790 counting only the distinct ones).

The product of its digits is 345600, while the sum is 46.

The spelling of 2388511521361 in words is "two trillion, three hundred eighty-eight billion, five hundred eleven million, five hundred twenty-one thousand, three hundred sixty-one".