4012548778 has 16 divisors (see below), whose sum is σ = 6879518784. Its totient is φ = 1719447840.

The previous prime is 4012548737. The next prime is 4012548781. The reversal of 4012548778 is 8778452104.

It is a super-2 number, since 2×4012548778² = 32201095391658586568, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 154513 + ... + 178603.

It is an arithmetic number, because the mean of its divisors is an integer number (429969924).

Almost surely, 2^4012548778 is an apocalyptic number.

4012548778 is a deficient number, since it is larger than the sum of its proper divisors (2866970006).

4012548778 is a wasteful number, since it uses less digits than its factorization.

4012548778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35997.

The product of its (nonzero) digits is 501760, while the sum is 46.

The square root of 4012548778 is about 63344.6823182499. The cubic root of 4012548778 is about 1589.0593143612.

The spelling of 4012548778 in words is "four billion, twelve million, five hundred forty-eight thousand, seven hundred seventy-eight".