28211384862 has 48 divisors (see below), whose sum is σ = 63409115952. Its totient is φ = 9400743360.

The previous prime is 28211384771. The next prime is 28211384867. The reversal of 28211384862 is 26848311282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28211384867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1878688 + ... + 1893644.

It is an arithmetic number, because the mean of its divisors is an integer number (1321023249).

Almost surely, 2^28211384862 is an apocalyptic number.

28211384862 is an abundant number, since it is smaller than the sum of its proper divisors (35197731090).

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

28211384862 is a wasteful number, since it uses less digits than its factorization.

28211384862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18855 (or 18843 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The spelling of 28211384862 in words is "twenty-eight billion, two hundred eleven million, three hundred eighty-four thousand, eight hundred sixty-two".