28446364548 has 108 divisors (see below), whose sum is σ = 85063895280. Its totient is φ = 7989748704.

The previous prime is 28446364547. The next prime is 28446364549. The reversal of 28446364548 is 84546364482.

It is a happy number.

28446364548 is a `hidden beast` number, since 2 + 84 + 463 + 64 + 5 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (28446364547) and next prime (28446364549).

It is a super-2 number, since 2×28446364548² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28446364494 and 28446364503.

It is not an unprimeable number, because it can be changed into a prime (28446364543) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32586 + ... + 240737.

It is an arithmetic number, because the mean of its divisors is an integer number (787628660).

Almost surely, 2^28446364548 is an apocalyptic number.

28446364548 is a gapful number since it is divisible by the number (28) 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 28446364548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42531947640).

28446364548 is an abundant number, since it is smaller than the sum of its proper divisors (56617530732).

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

28446364548 is a wasteful number, since it uses less digits than its factorization.

28446364548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273406 (or 273394 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 54.

The spelling of 28446364548 in words is "twenty-eight billion, four hundred forty-six million, three hundred sixty-four thousand, five hundred forty-eight".