13032947628 has 90 divisors (see below), whose sum is σ = 35958595596. Its totient is φ = 4115630736.

The previous prime is 13032947621. The next prime is 13032947633. The reversal of 13032947628 is 82674923031.

13032947628 is a `hidden beast` number, since 13 + 0 + 3 + 2 + 9 + 4 + 7 + 628 = 666.

It is not an unprimeable number, because it can be changed into a prime (13032947621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 61251 + ... + 172677.

Almost surely, 2^13032947628 is an apocalyptic number.

13032947628 is a gapful number since it is divisible by the number (18) 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 13032947628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17979297798).

13032947628 is an abundant number, since it is smaller than the sum of its proper divisors (22925647968).

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

13032947628 is a wasteful number, since it uses less digits than its factorization.

13032947628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111481 (or 111451 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 13032947628 in words is "thirteen billion, thirty-two million, nine hundred forty-seven thousand, six hundred twenty-eight".