28158011426 has 8 divisors (see below), whose sum is σ = 42320988864. Its totient is φ = 14051015140.

The previous prime is 28158011423. The next prime is 28158011437. The reversal of 28158011426 is 62411085182.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28158011426.

It is not an unprimeable number, because it can be changed into a prime (28158011423) 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, 13994030 + ... + 13996041.

It is an arithmetic number, because the mean of its divisors is an integer number (5290123608).

Almost surely, 2^28158011426 is an apocalyptic number.

28158011426 is a deficient number, since it is larger than the sum of its proper divisors (14162977438).

28158011426 is a wasteful number, since it uses less digits than its factorization.

28158011426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27990576.

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 28158011426 in words is "twenty-eight billion, one hundred fifty-eight million, eleven thousand, four hundred twenty-six".