28158996126 has 16 divisors (see below), whose sum is σ = 56834672400. Its totient is φ = 9300218688.

The previous prime is 28158996121. The next prime is 28158996149. The reversal of 28158996126 is 62169985182.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28158996121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21527631 + ... + 21528938.

It is an arithmetic number, because the mean of its divisors is an integer number (3552167025).

Almost surely, 2^28158996126 is an apocalyptic number.

28158996126 is an abundant number, since it is smaller than the sum of its proper divisors (28675676274).

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

28158996126 is a wasteful number, since it uses less digits than its factorization.

28158996126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43056683.

The product of its digits is 3732480, while the sum is 57.

The spelling of 28158996126 in words is "twenty-eight billion, one hundred fifty-eight million, nine hundred ninety-six thousand, one hundred twenty-six".