2173666948 has 6 divisors (see below), whose sum is σ = 3803917166. Its totient is φ = 1086833472.

The previous prime is 2173666933. The next prime is 2173666949. The reversal of 2173666948 is 8496663712.

It can be written as a sum of positive squares in only one way, i.e., 1942870084 + 230796864 = 44078^2 + 15192^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2173666895 and 2173666904.

It is not an unprimeable number, because it can be changed into a prime (2173666949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271708365 + ... + 271708372.

Almost surely, 2^2173666948 is an apocalyptic number.

It is an amenable number.

2173666948 is a deficient number, since it is larger than the sum of its proper divisors (1630250218).

2173666948 is a wasteful number, since it uses less digits than its factorization.

2173666948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543416741 (or 543416739 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The square root of 2173666948 is about 46622.6012573301. The cubic root of 2173666948 is about 1295.3814309502.

The spelling of 2173666948 in words is "two billion, one hundred seventy-three million, six hundred sixty-six thousand, nine hundred forty-eight".