28562861712 has 320 divisors, whose sum is σ = 98597689344. Its totient is φ = 6897131520.

The previous prime is 28562861681. The next prime is 28562861713. The reversal of 28562861712 is 21716826582.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (28562861713) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5212318 + ... + 5217794.

Almost surely, 2^28562861712 is an apocalyptic number.

28562861712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28562861712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49298844672).

28562861712 is an abundant number, since it is smaller than the sum of its proper divisors (70034827632).

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

28562861712 is a wasteful number, since it uses less digits than its factorization.

28562861712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606 (or 5600 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The spelling of 28562861712 in words is "twenty-eight billion, five hundred sixty-two million, eight hundred sixty-one thousand, seven hundred twelve".