63475344680 has 64 divisors (see below), whose sum is σ = 157553812800. Its totient is φ = 22822581760.

The previous prime is 63475344643. The next prime is 63475344697. The reversal of 63475344680 is 8644357436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771302 + ... + 849621.

It is an arithmetic number, because the mean of its divisors is an integer number (2461778325).

Almost surely, 2^63475344680 is an apocalyptic number.

It is an amenable number.

63475344680 is an abundant number, since it is smaller than the sum of its proper divisors (94078468120).

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

63475344680 is a wasteful number, since it uses less digits than its factorization.

63475344680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621034 (or 1621030 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 50.

The spelling of 63475344680 in words is "sixty-three billion, four hundred seventy-five million, three hundred forty-four thousand, six hundred eighty".