63561580910613 has 16 divisors (see below), whose sum is σ = 95942008923840. Its totient is φ = 41574870531792.

The previous prime is 63561580910539. The next prime is 63561580910627. The reversal of 63561580910613 is 31601908516536.

63561580910613 is a `hidden beast` number, since 6 + 3 + 5 + 6 + 1 + 5 + 8 + 0 + 9 + 10 + 613 = 666.

It is not a de Polignac number, because 63561580910613 - 2¹⁸ = 63561580648469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63561580910613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63561580900613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22208796931 + ... + 22208799792.

It is an arithmetic number, because the mean of its divisors is an integer number (5996375557740).

Almost surely, 2^{63561580910613} is an apocalyptic number.

It is an amenable number.

63561580910613 is a deficient number, since it is larger than the sum of its proper divisors (32380428013227).

63561580910613 is a wasteful number, since it uses less digits than its factorization.

63561580910613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44417596785 (or 44417596779 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 63561580910613 in words is "sixty-three trillion, five hundred sixty-one billion, five hundred eighty million, nine hundred ten thousand, six hundred thirteen".