13628641588 has 12 divisors (see below), whose sum is σ = 23853743620. Its totient is φ = 6813286272.

The previous prime is 13628641573. The next prime is 13628641589. The reversal of 13628641588 is 88514682631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4123951524 + 9504690064 = 64218^2 + 97492^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13628641589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228603 + ... + 281986.

Almost surely, 2^13628641588 is an apocalyptic number.

It is an amenable number.

13628641588 is a deficient number, since it is larger than the sum of its proper divisors (10225102032).

13628641588 is a wasteful number, since it uses less digits than its factorization.

13628641588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517266 (or 517264 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The spelling of 13628641588 in words is "thirteen billion, six hundred twenty-eight million, six hundred forty-one thousand, five hundred eighty-eight".