36001203409 has 2 divisors, whose sum is σ = 36001203410. Its totient is φ = 36001203408.

The previous prime is 36001203391. The next prime is 36001203449. The reversal of 36001203409 is 90430210063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33820313409 + 2180890000 = 183903^2 + 46700^2 .

It is a cyclic number.

It is not a de Polignac number, because 36001203409 - 2⁵ = 36001203377 is a prime.

It is not a weakly prime, because it can be changed into another prime (36001203449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18000601704 + 18000601705.

It is an arithmetic number, because the mean of its divisors is an integer number (18000601705).

Almost surely, 2^36001203409 is an apocalyptic number.

It is an amenable number.

36001203409 is a deficient number, since it is larger than the sum of its proper divisors (1).

36001203409 is an equidigital number, since it uses as much as digits as its factorization.

36001203409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

It can be divided in two parts, 3600 and 1203409, that multiplied together give a square (4332272400 = 65820²).

The spelling of 36001203409 in words is "thirty-six billion, one million, two hundred three thousand, four hundred nine".