5151485778 has 16 divisors (see below), whose sum is σ = 10355273280. Its totient is φ = 1708444976.

The previous prime is 5151485771. The next prime is 5151485819. The reversal of 5151485778 is 8775841515.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5151485778.

It is not an unprimeable number, because it can be changed into a prime (5151485771) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2177958 + ... + 2180321.

It is an arithmetic number, because the mean of its divisors is an integer number (647204580).

Almost surely, 2^5151485778 is an apocalyptic number.

5151485778 is an abundant number, since it is smaller than the sum of its proper divisors (5203787502).

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

5151485778 is a wasteful number, since it uses less digits than its factorization.

5151485778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358481.

The product of its digits is 1568000, while the sum is 51.

The square root of 5151485778 is about 71773.8516313567. The cubic root of 5151485778 is about 1727.0735580404.

The spelling of 5151485778 in words is "five billion, one hundred fifty-one million, four hundred eighty-five thousand, seven hundred seventy-eight".