5451806878 has 32 divisors (see below), whose sum is σ = 9779650560. Its totient is φ = 2230130880.

The previous prime is 5451806849. The next prime is 5451806881. The reversal of 5451806878 is 8786081545.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54358 + ... + 117721.

It is an arithmetic number, because the mean of its divisors is an integer number (305614080).

Almost surely, 2^5451806878 is an apocalyptic number.

5451806878 is a deficient number, since it is larger than the sum of its proper divisors (4327843682).

5451806878 is a wasteful number, since it uses less digits than its factorization.

5451806878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172192.

The product of its (nonzero) digits is 2150400, while the sum is 52.

The square root of 5451806878 is about 73836.3520090206. The cubic root of 5451806878 is about 1760.0033227813.

The spelling of 5451806878 in words is "five billion, four hundred fifty-one million, eight hundred six thousand, eight hundred seventy-eight".