4891123012 has 12 divisors (see below), whose sum is σ = 8687218960. Its totient is φ = 2409060456.

The previous prime is 4891123007. The next prime is 4891123031. The reversal of 4891123012 is 2103211984.

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 in 3 ways as a sum of consecutive naturals, for example, 9124962 + ... + 9125497.

Almost surely, 2^4891123012 is an apocalyptic number.

It is an amenable number.

4891123012 is a deficient number, since it is larger than the sum of its proper divisors (3796095948).

4891123012 is a wasteful number, since it uses less digits than its factorization.

4891123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18250530 (or 18250528 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 4891123012 is about 69936.5641992799. The cubic root of 4891123012 is about 1697.4729480485.

Adding to 4891123012 its reverse (2103211984), we get a palindrome (6994334996).

The spelling of 4891123012 in words is "four billion, eight hundred ninety-one million, one hundred twenty-three thousand, twelve".