20001836882813 has 2 divisors, whose sum is σ = 20001836882814. Its totient is φ = 20001836882812.

The previous prime is 20001836882723. The next prime is 20001836882821. The reversal of 20001836882813 is 31828863810002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12215605176889 + 7786231705924 = 3495083^2 + 2790382^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001836882813 - 2⁴² = 15603790371709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001836882843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000918441406 + 10000918441407.

It is an arithmetic number, because the mean of its divisors is an integer number (10000918441407).

Almost surely, 2^{20001836882813} is an apocalyptic number.

It is an amenable number.

20001836882813 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001836882813 is an equidigital number, since it uses as much as digits as its factorization.

20001836882813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 20001836882813 in words is "twenty trillion, one billion, eight hundred thirty-six million, eight hundred eighty-two thousand, eight hundred thirteen".