4311278648 has 8 divisors (see below), whose sum is σ = 8083647480. Its totient is φ = 2155639320.

The previous prime is 4311278623. The next prime is 4311278689. The reversal of 4311278648 is 8468721134.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 4311278599 and 4311278608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269454908 + ... + 269454923.

It is an arithmetic number, because the mean of its divisors is an integer number (1010455935).

Almost surely, 2^4311278648 is an apocalyptic number.

It is an amenable number.

4311278648 is a deficient number, since it is larger than the sum of its proper divisors (3772368832).

4311278648 is a wasteful number, since it uses less digits than its factorization.

4311278648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538909837 (or 538909833 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 4311278648 is about 65660.3278091116. The cubic root of 4311278648 is about 1627.5538412410.

The spelling of 4311278648 in words is "four billion, three hundred eleven million, two hundred seventy-eight thousand, six hundred forty-eight".