5120378854 has 8 divisors (see below), whose sum is σ = 7859186280. Its totient is φ = 2500650096.

The previous prime is 5120378839. The next prime is 5120378947. The reversal of 5120378854 is 4588730215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 5120378854.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 29769559 + ... + 29769730.

It is an arithmetic number, because the mean of its divisors is an integer number (982398285).

Almost surely, 2^5120378854 is an apocalyptic number.

5120378854 is a deficient number, since it is larger than the sum of its proper divisors (2738807426).

5120378854 is a wasteful number, since it uses less digits than its factorization.

5120378854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59539334.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 5120378854 is about 71556.8225538278. The cubic root of 5120378854 is about 1723.5902622374.

The spelling of 5120378854 in words is "five billion, one hundred twenty million, three hundred seventy-eight thousand, eight hundred fifty-four".