11281770448 has 80 divisors (see below), whose sum is σ = 24865908480. Its totient is φ = 4915579392.

The previous prime is 11281770427. The next prime is 11281770499. The reversal of 11281770448 is 84407718211.

It is a super-2 number, since 2×11281770448² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153065 + ... + 1162807.

It is an arithmetic number, because the mean of its divisors is an integer number (310823856).

Almost surely, 2^11281770448 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 11281770448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12432954240).

11281770448 is an abundant number, since it is smaller than the sum of its proper divisors (13584138032).

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

11281770448 is a wasteful number, since it uses less digits than its factorization.

11281770448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10076 (or 10070 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 43.

The spelling of 11281770448 in words is "eleven billion, two hundred eighty-one million, seven hundred seventy thousand, four hundred forty-eight".