5451256128 has 168 divisors, whose sum is σ = 15210349056. Its totient is φ = 1722828800.

The previous prime is 5451256127. The next prime is 5451256169. The reversal of 5451256128 is 8216521545.

Its product of digits (96000) is a multiple of the sum of its prime divisors (500).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451256127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19399348 + ... + 19399628.

It is an arithmetic number, because the mean of its divisors is an integer number (90537792).

Almost surely, 2^5451256128 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 5451256128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7605174528).

5451256128 is an abundant number, since it is smaller than the sum of its proper divisors (9759092928).

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

5451256128 is a wasteful number, since it uses less digits than its factorization.

5451256128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 500 counting only the distinct ones).

The product of its digits is 96000, while the sum is 39.

The square root of 5451256128 is about 73832.6223833340. The cubic root of 5451256128 is about 1759.9440546955.

The spelling of 5451256128 in words is "five billion, four hundred fifty-one million, two hundred fifty-six thousand, one hundred twenty-eight".