13280221748 has 24 divisors (see below), whose sum is σ = 23328310824. Its totient is φ = 6615017600.

The previous prime is 13280221729. The next prime is 13280221753. The reversal of 13280221748 is 84712208231.

It can be written as a sum of positive squares in 4 ways, for example, as 778298404 + 12501923344 = 27898^2 + 111812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3473678 + ... + 3477498.

It is an arithmetic number, because the mean of its divisors is an integer number (972012951).

Almost surely, 2^13280221748 is an apocalyptic number.

It is an amenable number.

13280221748 is a deficient number, since it is larger than the sum of its proper divisors (10048089076).

13280221748 is a wasteful number, since it uses less digits than its factorization.

13280221748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6883 (or 6881 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

Adding to 13280221748 its reverse (84712208231), we get a palindrome (97992429979).

The spelling of 13280221748 in words is "thirteen billion, two hundred eighty million, two hundred twenty-one thousand, seven hundred forty-eight".