53668486636 has 6 divisors (see below), whose sum is σ = 93919851620. Its totient is φ = 26834243316.

The previous prime is 53668486621. The next prime is 53668486693. The reversal of 53668486636 is 63668486635.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6708560826 + ... + 6708560833.

Almost surely, 2^53668486636 is an apocalyptic number.

It is an amenable number.

53668486636 is a deficient number, since it is larger than the sum of its proper divisors (40251364984).

53668486636 is a wasteful number, since it uses less digits than its factorization.

53668486636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13417121663 (or 13417121661 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 61.

Subtracting 53668486636 from its reverse (63668486635), we obtain a palindrome (9999999999).

The spelling of 53668486636 in words is "fifty-three billion, six hundred sixty-eight million, four hundred eighty-six thousand, six hundred thirty-six".