63109980 has 72 divisors (see below), whose sum is σ = 194327952. Its totient is φ = 16574976.

The previous prime is 63109957. The next prime is 63110011. The reversal of 63109980 is 8990136.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9444 + ... + 14676.

Almost surely, 2^63109980 is an apocalyptic number.

63109980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63109980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97163976).

63109980 is an abundant number, since it is smaller than the sum of its proper divisors (131217972).

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

63109980 is a wasteful number, since it uses less digits than its factorization.

63109980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315 (or 5310 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 63109980 is about 7944.1790010044. The cubic root of 63109980 is about 398.1371294178.

It can be divided in two parts, 6310 and 9980, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 63109980 in words is "sixty-three million, one hundred nine thousand, nine hundred eighty".