63171010064 has 10 divisors (see below), whose sum is σ = 122393832030. Its totient is φ = 31585505024.

The previous prime is 63171010037. The next prime is 63171010079. The reversal of 63171010064 is 46001017136.

It can be written as a sum of positive squares in only one way, i.e., 61062363664 + 2108646400 = 247108^2 + 45920^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974094049 + ... + 1974094080.

It is an arithmetic number, because the mean of its divisors is an integer number (12239383203).

Almost surely, 2^63171010064 is an apocalyptic number.

It is an amenable number.

63171010064 is a deficient number, since it is larger than the sum of its proper divisors (59222821966).

63171010064 is a wasteful number, since it uses less digits than its factorization.

63171010064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948188137 (or 3948188131 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 63171010064 in words is "sixty-three billion, one hundred seventy-one million, ten thousand, sixty-four".