210912132525389 has 2 divisors, whose sum is σ = 210912132525390. Its totient is φ = 210912132525388.

The previous prime is 210912132525383. The next prime is 210912132525463. The reversal of 210912132525389 is 983525231219012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127666271102500 + 83245861422889 = 11298950^2 + 9123917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210912132525389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210912132525389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210912132525383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105456066262694 + 105456066262695.

It is an arithmetic number, because the mean of its divisors is an integer number (105456066262695).

Almost surely, 2^{210912132525389} is an apocalyptic number.

It is an amenable number.

210912132525389 is a deficient number, since it is larger than the sum of its proper divisors (1).

210912132525389 is an equidigital number, since it uses as much as digits as its factorization.

210912132525389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 210912132525389 in words is "two hundred ten trillion, nine hundred twelve billion, one hundred thirty-two million, five hundred twenty-five thousand, three hundred eighty-nine".