28063143854 has 32 divisors (see below), whose sum is σ = 43074218880. Its totient is φ = 13708300000.

The previous prime is 28063143853. The next prime is 28063143859. The reversal of 28063143854 is 45834136082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063143853) 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, 19339829 + ... + 19341279.

It is an arithmetic number, because the mean of its divisors is an integer number (1346069340).

Almost surely, 2^28063143854 is an apocalyptic number.

28063143854 is a deficient number, since it is larger than the sum of its proper divisors (15011075026).

28063143854 is a wasteful number, since it uses less digits than its factorization.

28063143854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 28063143854 in words is "twenty-eight billion, sixty-three million, one hundred forty-three thousand, eight hundred fifty-four".