28114744560 has 160 divisors (see below), whose sum is σ = 99695619072. Its totient is φ = 6420480000.

The previous prime is 28114744547. The next prime is 28114744561. The reversal of 28114744560 is 6544741182.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114744561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2037685 + ... + 2051435.

Almost surely, 2^28114744560 is an apocalyptic number.

28114744560 is a gapful number since it is divisible by the number (20) 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 28114744560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49847809536).

28114744560 is an abundant number, since it is smaller than the sum of its proper divisors (71580874512).

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

28114744560 is a wasteful number, since it uses less digits than its factorization.

28114744560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14991 (or 14985 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 28114744560 in words is "twenty-eight billion, one hundred fourteen million, seven hundred forty-four thousand, five hundred sixty".