5538642432 has 160 divisors (see below), whose sum is σ = 15959192832. Its totient is φ = 1700265984.

The previous prime is 5538642419. The next prime is 5538642457. The reversal of 5538642432 is 2342468355.

It is a happy number.

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, 1225008 + ... + 1229520.

Almost surely, 2^5538642432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5538642432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7979596416).

5538642432 is an abundant number, since it is smaller than the sum of its proper divisors (10420550400).

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

5538642432 is a wasteful number, since it uses less digits than its factorization.

5538642432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4598 (or 4582 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The square root of 5538642432 is about 74422.0560855450. The cubic root of 5538642432 is about 1769.2985007808.

The spelling of 5538642432 in words is "five billion, five hundred thirty-eight million, six hundred forty-two thousand, four hundred thirty-two".