2126189743 has 2 divisors, whose sum is σ = 2126189744. Its totient is φ = 2126189742.

The previous prime is 2126189729. The next prime is 2126189771. The reversal of 2126189743 is 3479816212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2126189743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2126189743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126189783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063094871 + 1063094872.

It is an arithmetic number, because the mean of its divisors is an integer number (1063094872).

Almost surely, 2^2126189743 is an apocalyptic number.

2126189743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126189743 is an equidigital number, since it uses as much as digits as its factorization.

2126189743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 2126189743 is about 46110.6250554034. The cubic root of 2126189743 is about 1285.8806850178.

The spelling of 2126189743 in words is "two billion, one hundred twenty-six million, one hundred eighty-nine thousand, seven hundred forty-three".