5451685128 has 32 divisors (see below), whose sum is σ = 15143570400. Its totient is φ = 1817228304.

The previous prime is 5451685081. The next prime is 5451685133. The reversal of 5451685128 is 8215861545.

5451685128 is a `hidden beast` number, since 5 + 4 + 516 + 8 + 5 + 128 = 666.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12619426 + ... + 12619857.

It is an arithmetic number, because the mean of its divisors is an integer number (473236575).

Almost surely, 2^5451685128 is an apocalyptic number.

It is an amenable number.

5451685128 is an abundant number, since it is smaller than the sum of its proper divisors (9691885272).

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

5451685128 is a wasteful number, since it uses less digits than its factorization.

5451685128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25239298 (or 25239288 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 5451685128 is about 73835.5275460262. The cubic root of 5451685128 is about 1759.9902211922.

The spelling of 5451685128 in words is "five billion, four hundred fifty-one million, six hundred eighty-five thousand, one hundred twenty-eight".