28218377016 has 48 divisors (see below), whose sum is σ = 76436140560. Its totient is φ = 9404726400.

The previous prime is 28218376987. The next prime is 28218377017. The reversal of 28218377016 is 61077381282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28218377017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532941 + ... + 583491.

It is an arithmetic number, because the mean of its divisors is an integer number (1592419595).

Almost surely, 2^28218377016 is an apocalyptic number.

It is an amenable number.

28218377016 is an abundant number, since it is smaller than the sum of its proper divisors (48217763544).

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

28218377016 is a wasteful number, since it uses less digits than its factorization.

28218377016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58316 (or 58309 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 28218377016 in words is "twenty-eight billion, two hundred eighteen million, three hundred seventy-seven thousand, sixteen".