4978978045 has 16 divisors (see below), whose sum is σ = 6172185600. Its totient is φ = 3851769600.

The previous prime is 4978978033. The next prime is 4978978057. The reversal of 4978978045 is 5408798794.

It is an interprime number because it is at equal distance from previous prime (4978978033) and next prime (4978978057).

It is not a de Polignac number, because 4978978045 - 2¹⁷ = 4978846973 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 205365 + ... + 228325.

It is an arithmetic number, because the mean of its divisors is an integer number (385761600).

Almost surely, 2^4978978045 is an apocalyptic number.

It is an amenable number.

4978978045 is a deficient number, since it is larger than the sum of its proper divisors (1193207555).

4978978045 is a wasteful number, since it uses less digits than its factorization.

4978978045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24396.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The square root of 4978978045 is about 70561.8738767615. The cubic root of 4978978045 is about 1707.5761110852.

The spelling of 4978978045 in words is "four billion, nine hundred seventy-eight million, nine hundred seventy-eight thousand, forty-five".