63576885989 has 2 divisors, whose sum is σ = 63576885990. Its totient is φ = 63576885988.

The previous prime is 63576885973. The next prime is 63576886003. The reversal of 63576885989 is 98958867536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52136872225 + 11440013764 = 228335^2 + 106958^2 .

It is a cyclic number.

It is not a de Polignac number, because 63576885989 - 2⁴ = 63576885973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63576885949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31788442994 + 31788442995.

It is an arithmetic number, because the mean of its divisors is an integer number (31788442995).

Almost surely, 2^63576885989 is an apocalyptic number.

It is an amenable number.

63576885989 is a deficient number, since it is larger than the sum of its proper divisors (1).

63576885989 is an equidigital number, since it uses as much as digits as its factorization.

63576885989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 783820800, while the sum is 74.

The spelling of 63576885989 in words is "sixty-three billion, five hundred seventy-six million, eight hundred eighty-five thousand, nine hundred eighty-nine".