2036172739409 has 2 divisors, whose sum is σ = 2036172739410. Its totient is φ = 2036172739408.

The previous prime is 2036172739399. The next prime is 2036172739423. The reversal of 2036172739409 is 9049372716302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1251203319184 + 784969420225 = 1118572^2 + 885985^2 .

It is a cyclic number.

It is not a de Polignac number, because 2036172739409 - 2³⁶ = 1967453262673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2036172733409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1018086369704 + 1018086369705.

It is an arithmetic number, because the mean of its divisors is an integer number (1018086369705).

Almost surely, 2^{2036172739409} is an apocalyptic number.

It is an amenable number.

2036172739409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2036172739409 is an equidigital number, since it uses as much as digits as its factorization.

2036172739409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 2036172739409 in words is "two trillion, thirty-six billion, one hundred seventy-two million, seven hundred thirty-nine thousand, four hundred nine".