20262936943 has 2 divisors, whose sum is σ = 20262936944. Its totient is φ = 20262936942.

The previous prime is 20262936923. The next prime is 20262936949. The reversal of 20262936943 is 34963926202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20262936943 is a prime.

It is a super-2 number, since 2×20262936943² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20262936893 and 20262936902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20262936949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10131468471 + 10131468472.

It is an arithmetic number, because the mean of its divisors is an integer number (10131468472).

Almost surely, 2^20262936943 is an apocalyptic number.

20262936943 is a deficient number, since it is larger than the sum of its proper divisors (1).

20262936943 is an equidigital number, since it uses as much as digits as its factorization.

20262936943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 20262936943 in words is "twenty billion, two hundred sixty-two million, nine hundred thirty-six thousand, nine hundred forty-three".