63772417064 has 32 divisors (see below), whose sum is σ = 124372765440. Its totient is φ = 30622051200.

The previous prime is 63772417063. The next prime is 63772417129. The reversal of 63772417064 is 46071427736.

It is not an unprimeable number, because it can be changed into a prime (63772417061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948989 + ... + 1013964.

It is an arithmetic number, because the mean of its divisors is an integer number (3886648920).

Almost surely, 2^63772417064 is an apocalyptic number.

It is an amenable number.

63772417064 is a deficient number, since it is larger than the sum of its proper divisors (60600348376).

63772417064 is a wasteful number, since it uses less digits than its factorization.

63772417064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963121 (or 1963117 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 63772417064 in words is "sixty-three billion, seven hundred seventy-two million, four hundred seventeen thousand, sixty-four".