2251671788 has 12 divisors (see below), whose sum is σ = 3962440440. Its totient is φ = 1119545952.

The previous prime is 2251671757. The next prime is 2251671791. The reversal of 2251671788 is 8871761522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571681 + ... + 1573112.

It is an arithmetic number, because the mean of its divisors is an integer number (330203370).

Almost surely, 2^2251671788 is an apocalyptic number.

It is an amenable number.

2251671788 is a deficient number, since it is larger than the sum of its proper divisors (1710768652).

2251671788 is a wasteful number, since it uses less digits than its factorization.

2251671788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144976 (or 3144974 counting only the distinct ones).

The product of its digits is 376320, while the sum is 47.

The square root of 2251671788 is about 47451.7838231610. The cubic root of 2251671788 is about 1310.6951592770.

The spelling of 2251671788 in words is "two billion, two hundred fifty-one million, six hundred seventy-one thousand, seven hundred eighty-eight".