63686041362728 has 32 divisors (see below), whose sum is σ = 119835323955360. Its totient is φ = 31729958823360.

The previous prime is 63686041362709. The next prime is 63686041362731. The reversal of 63686041362728 is 82726314068636.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154132826 + ... + 154545462.

It is an arithmetic number, because the mean of its divisors is an integer number (3744853873605).

Almost surely, 2^{63686041362728} is an apocalyptic number.

It is an amenable number.

63686041362728 is a deficient number, since it is larger than the sum of its proper divisors (56149282592632).

63686041362728 is a wasteful number, since it uses less digits than its factorization.

63686041362728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481097 (or 481093 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 62.

The spelling of 63686041362728 in words is "sixty-three trillion, six hundred eighty-six billion, forty-one million, three hundred sixty-two thousand, seven hundred twenty-eight".