13628644580 has 12 divisors (see below), whose sum is σ = 28620153660. Its totient is φ = 5451457824.

The previous prime is 13628644573. The next prime is 13628644597. The reversal of 13628644580 is 8544682631.

It can be written as a sum of positive squares in 2 ways, for example, as 3741524224 + 9887120356 = 61168^2 + 99434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340716095 + ... + 340716134.

It is an arithmetic number, because the mean of its divisors is an integer number (2385012805).

Almost surely, 2^13628644580 is an apocalyptic number.

13628644580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13628644580 is an abundant number, since it is smaller than the sum of its proper divisors (14991509080).

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

13628644580 is a wasteful number, since it uses less digits than its factorization.

13628644580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681432238 (or 681432236 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 13628644580 in words is "thirteen billion, six hundred twenty-eight million, six hundred forty-four thousand, five hundred eighty".