63487187020 has 24 divisors (see below), whose sum is σ = 134821108800. Its totient is φ = 25109538432.

The previous prime is 63487186999. The next prime is 63487187053. The reversal of 63487187020 is 2078178436.

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, 17831700 + ... + 17835259.

It is an arithmetic number, because the mean of its divisors is an integer number (5617546200).

Almost surely, 2^63487187020 is an apocalyptic number.

It is an amenable number.

63487187020 is an abundant number, since it is smaller than the sum of its proper divisors (71333921780).

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

63487187020 is a wasteful number, since it uses less digits than its factorization.

63487187020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35667057 (or 35667055 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 63487187020 in words is "sixty-three billion, four hundred eighty-seven million, one hundred eighty-seven thousand, twenty".