63690936612 has 24 divisors (see below), whose sum is σ = 148630337856. Its totient is φ = 21227719008.

The previous prime is 63690936607. The next prime is 63690936637. The reversal of 63690936612 is 21663909636.

It is a happy number.

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, 220488 + ... + 419519.

It is an arithmetic number, because the mean of its divisors is an integer number (6192930744).

Almost surely, 2^63690936612 is an apocalyptic number.

It is an amenable number.

63690936612 is an abundant number, since it is smaller than the sum of its proper divisors (84939401244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63690936612 is a wasteful number, since it uses less digits than its factorization.

63690936612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648307 (or 648305 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 51.

The spelling of 63690936612 in words is "sixty-three billion, six hundred ninety million, nine hundred thirty-six thousand, six hundred twelve".