63887562593 has 2 divisors, whose sum is σ = 63887562594. Its totient is φ = 63887562592.

The previous prime is 63887562587. The next prime is 63887562659. The reversal of 63887562593 is 39526578836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43019737744 + 20867824849 = 207412^2 + 144457^2 .

It is a cyclic number.

It is not a de Polignac number, because 63887562593 - 2³² = 59592595297 is a prime.

It is not a weakly prime, because it can be changed into another prime (63887562493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31943781296 + 31943781297.

It is an arithmetic number, because the mean of its divisors is an integer number (31943781297).

Almost surely, 2^63887562593 is an apocalyptic number.

It is an amenable number.

63887562593 is a deficient number, since it is larger than the sum of its proper divisors (1).

63887562593 is an equidigital number, since it uses as much as digits as its factorization.

63887562593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 62.

The spelling of 63887562593 in words is "sixty-three billion, eight hundred eighty-seven million, five hundred sixty-two thousand, five hundred ninety-three".