5448157638 has 64 divisors (see below), whose sum is σ = 13684336128. Its totient is φ = 1404760320.

The previous prime is 5448157621. The next prime is 5448157661. The reversal of 5448157638 is 8367518445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20256 + ... + 106332.

It is an arithmetic number, because the mean of its divisors is an integer number (213817752).

Almost surely, 2^5448157638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5448157638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6842168064).

5448157638 is an abundant number, since it is smaller than the sum of its proper divisors (8236178490).

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

5448157638 is a wasteful number, since it uses less digits than its factorization.

5448157638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86237.

The product of its digits is 3225600, while the sum is 51.

The square root of 5448157638 is about 73811.6361964697. The cubic root of 5448157638 is about 1759.6105411930.

The spelling of 5448157638 in words is "five billion, four hundred forty-eight million, one hundred fifty-seven thousand, six hundred thirty-eight".