4278132986 has 16 divisors (see below), whose sum is σ = 7048641600. Its totient is φ = 1938375648.

The previous prime is 4278132979. The next prime is 4278133007. The reversal of 4278132986 is 6892318724.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2446571 + ... + 2448318.

It is an arithmetic number, because the mean of its divisors is an integer number (440540100).

Almost surely, 2^4278132986 is an apocalyptic number.

4278132986 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4278132986 is a deficient number, since it is larger than the sum of its proper divisors (2770508614).

4278132986 is a wasteful number, since it uses less digits than its factorization.

4278132986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894933.

The product of its digits is 1161216, while the sum is 50.

The square root of 4278132986 is about 65407.4383078867. The cubic root of 4278132986 is about 1623.3721590173.

The spelling of 4278132986 in words is "four billion, two hundred seventy-eight million, one hundred thirty-two thousand, nine hundred eighty-six".