63861277526668 has 6 divisors (see below), whose sum is σ = 111757235671676. Its totient is φ = 31930638763332.

The previous prime is 63861277526659. The next prime is 63861277526701. The reversal of 63861277526668 is 86662577216836.

It is a super-2 number, since 2×63861277526668² (a number of 28 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 63861277526668.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7982659690830 + ... + 7982659690837.

Almost surely, 2^{63861277526668} is an apocalyptic number.

It is an amenable number.

63861277526668 is a deficient number, since it is larger than the sum of its proper divisors (47895958145008).

63861277526668 is a wasteful number, since it uses less digits than its factorization.

63861277526668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15965319381671 (or 15965319381669 counting only the distinct ones).

The product of its digits is 1463132160, while the sum is 73.

The spelling of 63861277526668 in words is "sixty-three trillion, eight hundred sixty-one billion, two hundred seventy-seven million, five hundred twenty-six thousand, six hundred sixty-eight".