4128278264 has 32 divisors (see below), whose sum is σ = 8481121200. Its totient is φ = 1868286720.

The previous prime is 4128278207. The next prime is 4128278281. The reversal of 4128278264 is 4628728214.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 82277 + ... + 122580.

Almost surely, 2^4128278264 is an apocalyptic number.

4128278264 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4128278264 is an abundant number, since it is smaller than the sum of its proper divisors (4352842936).

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

4128278264 is a wasteful number, since it uses less digits than its factorization.

4128278264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205103 (or 205099 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 4128278264 is about 64251.6790753362. The cubic root of 4128278264 is about 1604.1919068154.

The spelling of 4128278264 in words is "four billion, one hundred twenty-eight million, two hundred seventy-eight thousand, two hundred sixty-four".