8228651544 has 128 divisors (see below), whose sum is σ = 23153592000. Its totient is φ = 2707540992.

The previous prime is 8228651539. The next prime is 8228651549. The reversal of 8228651544 is 4451568228.

8228651544 is a `hidden beast` number, since 8 + 22 + 86 + 5 + 1 + 544 = 666.

It is an interprime number because it is at equal distance from previous prime (8228651539) and next prime (8228651549).

It is a self number, because there is not a number n which added to its sum of digits gives 8228651544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8228651549) 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, 8781444 + ... + 8782380.

Almost surely, 2^8228651544 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 8228651544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11576796000).

8228651544 is an abundant number, since it is smaller than the sum of its proper divisors (14924940456).

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

8228651544 is a wasteful number, since it uses less digits than its factorization.

8228651544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434 (or 1424 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 8228651544 is about 90711.9151159317. The cubic root of 8228651544 is about 2018.8755909379.

The spelling of 8228651544 in words is "eight billion, two hundred twenty-eight million, six hundred fifty-one thousand, five hundred forty-four".