63988304534361 has 9 divisors (see below), whose sum is σ = 92427585657589. Its totient is φ = 42658853691036.

The previous prime is 63988304534359. The next prime is 63988304534387. The reversal of 63988304534361 is 16343540388936.

The square root of 63988304534361 is 7999269.

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

63988304534361 is a `hidden beast` number, since 6 + 3 + 9 + 8 + 8 + 30 + 4 + 534 + 3 + 61 = 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 63988304534361 - 2¹ = 63988304534359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63988304584361) 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, 22664596 + ... + 25331018.

Almost surely, 2^{63988304534361} is an apocalyptic number.

63988304534361 is the 7999269-th square number.

63988304534361 is the 3999635-th centered octagonal number.

It is an amenable number.

63988304534361 is a deficient number, since it is larger than the sum of its proper divisors (28439281123228).

63988304534361 is an frugal number, since it uses more digits than its factorization.

63988304534361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332852 (or 2666426 counting only the distinct ones).

The product of its (nonzero) digits is 134369280, while the sum is 63.

The spelling of 63988304534361 in words is "sixty-three trillion, nine hundred eighty-eight billion, three hundred four million, five hundred thirty-four thousand, three hundred sixty-one".