28601204837 has 4 divisors (see below), whose sum is σ = 28617211776. Its totient is φ = 28585197900.

The previous prime is 28601204813. The next prime is 28601204851. The reversal of 28601204837 is 73840210682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28601204837 - 2⁸ = 28601204581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28601204794 and 28601204803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28601204897) 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, 8000789 + ... + 8004362.

It is an arithmetic number, because the mean of its divisors is an integer number (7154302944).

Almost surely, 2^28601204837 is an apocalyptic number.

It is an amenable number.

28601204837 is a deficient number, since it is larger than the sum of its proper divisors (16006939).

28601204837 is a wasteful number, since it uses less digits than its factorization.

28601204837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16006938.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 28601204837 in words is "twenty-eight billion, six hundred one million, two hundred four thousand, eight hundred thirty-seven".