5451551880 has 128 divisors (see below), whose sum is σ = 17206922880. Its totient is φ = 1379911680.

The previous prime is 5451551849. The next prime is 5451551893. The reversal of 5451551880 is 881551545.

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 31 ways as a sum of consecutive naturals, for example, 167067 + ... + 197013.

It is an arithmetic number, because the mean of its divisors is an integer number (134429085).

Almost surely, 2^5451551880 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 5451551880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8603461440).

5451551880 is an abundant number, since it is smaller than the sum of its proper divisors (11755371000).

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

5451551880 is a wasteful number, since it uses less digits than its factorization.

5451551880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30039 (or 30035 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 42.

The square root of 5451551880 is about 73834.6252106693. The cubic root of 5451551880 is about 1759.9758820731.

The spelling of 5451551880 in words is "five billion, four hundred fifty-one million, five hundred fifty-one thousand, eight hundred eighty".