63145878 has 8 divisors (see below), whose sum is σ = 126291768. Its totient is φ = 21048624.

The previous prime is 63145877. The next prime is 63145883. The reversal of 63145878 is 87854136.

It is a sphenic number, since it is the product of 3 distinct primes.

63145878 is an admirable number.

It is a super-3 number, since 3×63145878³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63145877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5262151 + ... + 5262162.

It is an arithmetic number, because the mean of its divisors is an integer number (15786471).

Almost surely, 2^63145878 is an apocalyptic number.

63145878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63145878 is a wasteful number, since it uses less digits than its factorization.

63145878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524318.

The product of its digits is 161280, while the sum is 42.

The square root of 63145878 is about 7946.4380699783. The cubic root of 63145878 is about 398.2126041030.

The spelling of 63145878 in words is "sixty-three million, one hundred forty-five thousand, eight hundred seventy-eight".