63818960 has 40 divisors (see below), whose sum is σ = 152005896. Its totient is φ = 24903680.

The previous prime is 63818959. The next prime is 63818977. The reversal of 63818960 is 6981836.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2729104 + 61089856 = 1652^2 + 7816^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

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, 6449 + ... + 13008.

Almost surely, 2^63818960 is an apocalyptic number.

It is an amenable number.

63818960 is an abundant number, since it is smaller than the sum of its proper divisors (88186936).

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

63818960 is a wasteful number, since it uses less digits than its factorization.

63818960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19511 (or 19505 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 63818960 is about 7988.6769868358. The cubic root of 63818960 is about 399.6224771366.

The spelling of 63818960 in words is "sixty-three million, eight hundred eighteen thousand, nine hundred sixty".