210189970433 has 2 divisors, whose sum is σ = 210189970434. Its totient is φ = 210189970432.

The previous prime is 210189970387. The next prime is 210189970483. The reversal of 210189970433 is 334079981012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125675922064 + 84514048369 = 354508^2 + 290713^2 .

It is a cyclic number.

It is not a de Polignac number, because 210189970433 - 2⁶ = 210189970369 is a prime.

It is not a weakly prime, because it can be changed into another prime (210189970483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105094985216 + 105094985217.

It is an arithmetic number, because the mean of its divisors is an integer number (105094985217).

Almost surely, 2^210189970433 is an apocalyptic number.

It is an amenable number.

210189970433 is a deficient number, since it is larger than the sum of its proper divisors (1).

210189970433 is an equidigital number, since it uses as much as digits as its factorization.

210189970433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 210189970433 in words is "two hundred ten billion, one hundred eighty-nine million, nine hundred seventy thousand, four hundred thirty-three".