28455637248 has 216 divisors, whose sum is σ = 84084436800. Its totient is φ = 9251573760.

The previous prime is 28455637247. The next prime is 28455637271. The reversal of 28455637248 is 84273655482.

28455637248 is a `hidden beast` number, since 2 + 8 + 4 + 5 + 563 + 72 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28455637194 and 28455637203.

It is not an unprimeable number, because it can be changed into a prime (28455637247) 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, 24299703 + ... + 24300873.

It is an arithmetic number, because the mean of its divisors is an integer number (389279800).

Almost surely, 2^28455637248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28455637248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42042218400).

28455637248 is an abundant number, since it is smaller than the sum of its proper divisors (55628799552).

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

28455637248 is a wasteful number, since it uses less digits than its factorization.

28455637248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1428 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 54.

The spelling of 28455637248 in words is "twenty-eight billion, four hundred fifty-five million, six hundred thirty-seven thousand, two hundred forty-eight".