5497123128 has 128 divisors (see below), whose sum is σ = 16659302400. Its totient is φ = 1475610624.

The previous prime is 5497123109. The next prime is 5497123129. The reversal of 5497123128 is 8213217945.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 5497123128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5497123129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2052126 + ... + 2054802.

It is an arithmetic number, because the mean of its divisors is an integer number (130150800).

Almost surely, 2^5497123128 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 5497123128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8329651200).

5497123128 is an abundant number, since it is smaller than the sum of its proper divisors (11162179272).

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

5497123128 is a wasteful number, since it uses less digits than its factorization.

5497123128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429 (or 3425 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 5497123128 is about 74142.5864668882. The cubic root of 5497123128 is about 1764.8663454930.

The spelling of 5497123128 in words is "five billion, four hundred ninety-seven million, one hundred twenty-three thousand, one hundred twenty-eight".