13028399616 has 160 divisors (see below), whose sum is σ = 36987686208. Its totient is φ = 4060938240.

The previous prime is 13028399603. The next prime is 13028399639. The reversal of 13028399616 is 61699382031.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4254726 + ... + 4257786.

Almost surely, 2^13028399616 is an apocalyptic number.

13028399616 is a gapful number since it is divisible by the number (16) 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 13028399616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18493843104).

13028399616 is an abundant number, since it is smaller than the sum of its proper divisors (23959286592).

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

13028399616 is a wasteful number, since it uses less digits than its factorization.

13028399616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3246 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 13028399616 in words is "thirteen billion, twenty-eight million, three hundred ninety-nine thousand, six hundred sixteen".