5987901986361 has 45 divisors (see below), whose sum is σ = 9041282235711. Its totient is φ = 3949371209088.

The previous prime is 5987901986317. The next prime is 5987901986393. The reversal of 5987901986361 is 1636891097895.

The square root of 5987901986361 is 2447019.

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

5987901986361 is a `hidden beast` number, since 5 + 9 + 8 + 79 + 0 + 198 + 6 + 361 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2688796460025 + 3299105526336 = 1639755^2 + 1816344^2 .

It is not a de Polignac number, because 5987901986361 - 2¹³ = 5987901978169 is a prime.

It is a super-3 number, since 3×5987901986361³ (a number of 39 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5987901986361.

It is not an unprimeable number, because it can be changed into a prime (5987901986161) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2136246186 + ... + 2136248988.

Almost surely, 2^{5987901986361} is an apocalyptic number.

5987901986361 is the 2447019-th square number.

5987901986361 is the 1223510-th centered octagonal number.

It is an amenable number.

5987901986361 is a deficient number, since it is larger than the sum of its proper divisors (3053380249350).

5987901986361 is an frugal number, since it uses more digits than its factorization.

5987901986361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5812 (or 2903 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 72.

The spelling of 5987901986361 in words is "five trillion, nine hundred eighty-seven billion, nine hundred one million, nine hundred eighty-six thousand, three hundred sixty-one".