20453634641039 has 2 divisors, whose sum is σ = 20453634641040. Its totient is φ = 20453634641038.

The previous prime is 20453634640993. The next prime is 20453634641053. The reversal of 20453634641039 is 93014643635402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20453634641039 - 2²⁸ = 20453366205583 is a prime.

It is a super-2 number, since 2×20453634641039² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20453634641339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226817320519 + 10226817320520.

It is an arithmetic number, because the mean of its divisors is an integer number (10226817320520).

Almost surely, 2^{20453634641039} is an apocalyptic number.

20453634641039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20453634641039 is an equidigital number, since it uses as much as digits as its factorization.

20453634641039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 50.

The spelling of 20453634641039 in words is "twenty trillion, four hundred fifty-three billion, six hundred thirty-four million, six hundred forty-one thousand, thirty-nine".