63981481170 has 32 divisors (see below), whose sum is σ = 156822697728. Its totient is φ = 16698712448.

The previous prime is 63981481153. The next prime is 63981481237. The reversal of 63981481170 is 7118418936.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22687059 + ... + 22689878.

It is an arithmetic number, because the mean of its divisors is an integer number (4900709304).

Almost surely, 2^63981481170 is an apocalyptic number.

63981481170 is an abundant number, since it is smaller than the sum of its proper divisors (92841216558).

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

63981481170 is a wasteful number, since it uses less digits than its factorization.

63981481170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45376994.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 63981481170 in words is "sixty-three billion, nine hundred eighty-one million, four hundred eighty-one thousand, one hundred seventy".