5005554978 has 32 divisors (see below), whose sum is σ = 10544336640. Its totient is φ = 1579752720.

The previous prime is 5005554973. The next prime is 5005555001. The reversal of 5005554978 is 8794555005.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5005554971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191433 + ... + 216003.

It is an arithmetic number, because the mean of its divisors is an integer number (329510520).

Almost surely, 2^5005554978 is an apocalyptic number.

5005554978 is an abundant number, since it is smaller than the sum of its proper divisors (5538781662).

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

5005554978 is a wasteful number, since it uses less digits than its factorization.

5005554978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26382.

The product of its (nonzero) digits is 1260000, while the sum is 48.

The square root of 5005554978 is about 70749.9468409694. The cubic root of 5005554978 is about 1710.6089708898.

The spelling of 5005554978 in words is "five billion, five million, five hundred fifty-four thousand, nine hundred seventy-eight".