28005027837 has 16 divisors (see below), whose sum is σ = 37968855552. Its totient is φ = 18355878720.

The previous prime is 28005027833. The next prime is 28005027839. The reversal of 28005027837 is 73872050082.

It is not a de Polignac number, because 28005027837 - 2² = 28005027833 is a prime.

It is a super-2 number, since 2×28005027837² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28005027833) 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, 398868 + ... + 463794.

It is an arithmetic number, because the mean of its divisors is an integer number (2373053472).

Almost surely, 2^28005027837 is an apocalyptic number.

It is an amenable number.

28005027837 is a deficient number, since it is larger than the sum of its proper divisors (9963827715).

28005027837 is a wasteful number, since it uses less digits than its factorization.

28005027837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67348.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 28005027837 in words is "twenty-eight billion, five million, twenty-seven thousand, eight hundred thirty-seven".