28226287137 has 8 divisors (see below), whose sum is σ = 37709872704. Its totient is φ = 18780113168.

The previous prime is 28226287097. The next prime is 28226287139. The reversal of 28226287137 is 73178262282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28226287137 - 2⁶ = 28226287073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28226287139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9351138 + ... + 9354155.

It is an arithmetic number, because the mean of its divisors is an integer number (4713734088).

Almost surely, 2^28226287137 is an apocalyptic number.

It is an amenable number.

28226287137 is a deficient number, since it is larger than the sum of its proper divisors (9483585567).

28226287137 is a wasteful number, since it uses less digits than its factorization.

28226287137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18705799.

The product of its digits is 903168, while the sum is 48.

The spelling of 28226287137 in words is "twenty-eight billion, two hundred twenty-six million, two hundred eighty-seven thousand, one hundred thirty-seven".