28217158360 has 32 divisors (see below), whose sum is σ = 63493975440. Its totient is φ = 11285908864.

The previous prime is 28217158237. The next prime is 28217158367. The reversal of 28217158360 is 6385171282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28217158367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628419 + ... + 671821.

Almost surely, 2^28217158360 is an apocalyptic number.

28217158360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28217158360 is an abundant number, since it is smaller than the sum of its proper divisors (35276817080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28217158360 is a wasteful number, since it uses less digits than its factorization.

28217158360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59667 (or 59663 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 28217158360 in words is "twenty-eight billion, two hundred seventeen million, one hundred fifty-eight thousand, three hundred sixty".