2051012389 has 2 divisors, whose sum is σ = 2051012390. Its totient is φ = 2051012388.

The previous prime is 2051012363. The next prime is 2051012417. The reversal of 2051012389 is 9832101502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1942164900 + 108847489 = 44070^2 + 10433^2 .

It is a cyclic number.

It is not a de Polignac number, because 2051012389 - 2⁵ = 2051012357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2051012389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051012309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025506194 + 1025506195.

It is an arithmetic number, because the mean of its divisors is an integer number (1025506195).

Almost surely, 2^2051012389 is an apocalyptic number.

It is an amenable number.

2051012389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051012389 is an equidigital number, since it uses as much as digits as its factorization.

2051012389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2051012389 is about 45288.1042769511. The cubic root of 2051012389 is about 1270.5431757988.

The spelling of 2051012389 in words is "two billion, fifty-one million, twelve thousand, three hundred eighty-nine".