2158748968 has 32 divisors (see below), whose sum is σ = 4127760000. Its totient is φ = 1058222592.

The previous prime is 2158748939. The next prime is 2158748971. The reversal of 2158748968 is 8698478512.

It is a happy 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 in 7 ways as a sum of consecutive naturals, for example, 70033 + ... + 96031.

It is an arithmetic number, because the mean of its divisors is an integer number (128992500).

Almost surely, 2^2158748968 is an apocalyptic number.

It is an amenable number.

2158748968 is a deficient number, since it is larger than the sum of its proper divisors (1969011032).

2158748968 is a wasteful number, since it uses less digits than its factorization.

2158748968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26209 (or 26205 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The square root of 2158748968 is about 46462.3392437359. The cubic root of 2158748968 is about 1292.4112040880.

The spelling of 2158748968 in words is "two billion, one hundred fifty-eight million, seven hundred forty-eight thousand, nine hundred sixty-eight".