63541133994 has 32 divisors (see below), whose sum is σ = 141577067520. Its totient is φ = 18876940992.

The previous prime is 63541133951. The next prime is 63541134001. The reversal of 63541133994 is 49933114536.

63541133994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14043082 + ... + 14047605.

It is an arithmetic number, because the mean of its divisors is an integer number (4424283360).

Almost surely, 2^63541133994 is an apocalyptic number.

63541133994 is an abundant number, since it is smaller than the sum of its proper divisors (78035933526).

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

63541133994 is a wasteful number, since it uses less digits than its factorization.

63541133994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28090734.

The product of its digits is 1049760, while the sum is 48.

The spelling of 63541133994 in words is "sixty-three billion, five hundred forty-one million, one hundred thirty-three thousand, nine hundred ninety-four".