28237380635 has 4 divisors (see below), whose sum is σ = 33884856768. Its totient is φ = 22589904504.

The previous prime is 28237380607. The next prime is 28237380637. The reversal of 28237380635 is 53608373282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28237380635 - 2²⁴ = 28220603419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28237380635.

It is not an unprimeable number, because it can be changed into a prime (28237380637) 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, 2823738059 + ... + 2823738068.

It is an arithmetic number, because the mean of its divisors is an integer number (8471214192).

Almost surely, 2^28237380635 is an apocalyptic number.

28237380635 is a deficient number, since it is larger than the sum of its proper divisors (5647476133).

28237380635 is an equidigital number, since it uses as much as digits as its factorization.

28237380635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647476132.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 28237380635 in words is "twenty-eight billion, two hundred thirty-seven million, three hundred eighty thousand, six hundred thirty-five".