63078918 has 32 divisors (see below), whose sum is σ = 144418560. Its totient is φ = 17992800.

The previous prime is 63078913. The next prime is 63078919. The reversal of 63078918 is 81987036.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 63078918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63078913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43428 + ... + 44856.

It is an arithmetic number, because the mean of its divisors is an integer number (4513080).

Almost surely, 2^63078918 is an apocalyptic number.

63078918 is an abundant number, since it is smaller than the sum of its proper divisors (81339642).

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

63078918 is a wasteful number, since it uses less digits than its factorization.

63078918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 63078918 is about 7942.2237440153. The cubic root of 63078918 is about 398.0717992063.

It can be divided in two parts, 6307 and 8918, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 63078918 in words is "sixty-three million, seventy-eight thousand, nine hundred eighteen".