2171617268 has 12 divisors (see below), whose sum is σ = 3802418592. Its totient is φ = 1085211960.

The previous prime is 2171617211. The next prime is 2171617303. The reversal of 2171617268 is 8627161712.

2171617268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 140930 + ... + 155577.

It is an arithmetic number, because the mean of its divisors is an integer number (316868216).

Almost surely, 2^2171617268 is an apocalyptic number.

It is an amenable number.

2171617268 is a deficient number, since it is larger than the sum of its proper divisors (1630801324).

2171617268 is a wasteful number, since it uses less digits than its factorization.

2171617268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298342 (or 298340 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 2171617268 is about 46600.6144594682. The cubic root of 2171617268 is about 1294.9741388077.

The spelling of 2171617268 in words is "two billion, one hundred seventy-one million, six hundred seventeen thousand, two hundred sixty-eight".