2012179889 has 2 divisors, whose sum is σ = 2012179890. Its totient is φ = 2012179888.

The previous prime is 2012179777. The next prime is 2012179913. The reversal of 2012179889 is 9889712102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1682394289 + 329785600 = 41017^2 + 18160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012179889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012179189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006089944 + 1006089945.

It is an arithmetic number, because the mean of its divisors is an integer number (1006089945).

Almost surely, 2^2012179889 is an apocalyptic number.

It is an amenable number.

2012179889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012179889 is an equidigital number, since it uses as much as digits as its factorization.

2012179889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 2012179889 is about 44857.3281527110. The cubic root of 2012179889 is about 1262.4734918984.

The spelling of 2012179889 in words is "two billion, twelve million, one hundred seventy-nine thousand, eight hundred eighty-nine".