63439000605 has 128 divisors (see below), whose sum is σ = 118470988800. Its totient is φ = 32167231488.

The previous prime is 63439000567. The next prime is 63439000607. The reversal of 63439000605 is 50600093436.

63439000605 is a `hidden beast` number, since 6 + 3 + 43 + 9 + 0 + 0 + 0 + 605 = 666.

It is not a de Polignac number, because 63439000605 - 2⁷ = 63439000477 is a prime.

It is a super-2 number, since 2×63439000605² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63439000605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63439000607) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 85381864 + ... + 85382606.

It is an arithmetic number, because the mean of its divisors is an integer number (925554600).

Almost surely, 2^63439000605 is an apocalyptic number.

It is an amenable number.

63439000605 is a deficient number, since it is larger than the sum of its proper divisors (55031988195).

63439000605 is a wasteful number, since it uses less digits than its factorization.

63439000605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

Adding to 63439000605 its sum of digits (36), we get a square (63439000641 = 251871²).

The spelling of 63439000605 in words is "sixty-three billion, four hundred thirty-nine million, six hundred five", and thus it is an aban number.