28426535237 has 16 divisors (see below), whose sum is σ = 29722842240. Its totient is φ = 27151854912.

The previous prime is 28426535233. The next prime is 28426535287. The reversal of 28426535237 is 73253562482.

It is a cyclic number.

It is not a de Polignac number, because 28426535237 - 2² = 28426535233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28426535191 and 28426535200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28426535231) 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, 3260438 + ... + 3269144.

It is an arithmetic number, because the mean of its divisors is an integer number (1857677640).

Almost surely, 2^28426535237 is an apocalyptic number.

It is an amenable number.

28426535237 is a deficient number, since it is larger than the sum of its proper divisors (1296307003).

28426535237 is a wasteful number, since it uses less digits than its factorization.

28426535237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9932.

The product of its digits is 2419200, while the sum is 47.

The spelling of 28426535237 in words is "twenty-eight billion, four hundred twenty-six million, five hundred thirty-five thousand, two hundred thirty-seven".