4537775778 has 16 divisors (see below), whose sum is σ = 9296906976. Its totient is φ = 1475699360.

The previous prime is 4537775771. The next prime is 4537775821. The reversal of 4537775778 is 8775777354.

It is a super-2 number, since 2×4537775778² = 41182818022807010568, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4537775771) 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, 9222876 + ... + 9223367.

It is an arithmetic number, because the mean of its divisors is an integer number (581056686).

Almost surely, 2^4537775778 is an apocalyptic number.

4537775778 is an abundant number, since it is smaller than the sum of its proper divisors (4759131198).

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

4537775778 is a wasteful number, since it uses less digits than its factorization.

4537775778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18446289.

The product of its digits is 40336800, while the sum is 60.

The square root of 4537775778 is about 67363.0149117452. The cubic root of 4537775778 is about 1655.5704933802.

The spelling of 4537775778 in words is "four billion, five hundred thirty-seven million, seven hundred seventy-five thousand, seven hundred seventy-eight".