13555213828 has 24 divisors (see below), whose sum is σ = 25715560640. Its totient is φ = 6214816800.

The previous prime is 13555213817. The next prime is 13555213849. The reversal of 13555213828 is 82831255531.

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, 855318 + ... + 871021.

Almost surely, 2^13555213828 is an apocalyptic number.

It is an amenable number.

13555213828 is a deficient number, since it is larger than the sum of its proper divisors (12160346812).

13555213828 is a wasteful number, since it uses less digits than its factorization.

13555213828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726507 (or 1726505 counting only the distinct ones).

The product of its digits is 288000, while the sum is 43.

The spelling of 13555213828 in words is "thirteen billion, five hundred fifty-five million, two hundred thirteen thousand, eight hundred twenty-eight".