28237627636 has 24 divisors (see below), whose sum is σ = 50930288640. Its totient is φ = 13691629152.

The previous prime is 28237627591. The next prime is 28237627637. The reversal of 28237627636 is 63672673282.

It is a super-2 number, since 2×28237627636² (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 (28237627637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668500 + ... + 709483.

It is an arithmetic number, because the mean of its divisors is an integer number (2122095360).

Almost surely, 2^28237627636 is an apocalyptic number.

It is an amenable number.

28237627636 is a deficient number, since it is larger than the sum of its proper divisors (22692661004).

28237627636 is a wasteful number, since it uses less digits than its factorization.

28237627636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378143 (or 1378141 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 52.

The spelling of 28237627636 in words is "twenty-eight billion, two hundred thirty-seven million, six hundred twenty-seven thousand, six hundred thirty-six".