26138430943 has 2 divisors, whose sum is σ = 26138430944. Its totient is φ = 26138430942.

The previous prime is 26138430919. The next prime is 26138430961. The reversal of 26138430943 is 34903483162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26138430943 - 2²¹ = 26136333791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26138430943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26138433943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13069215471 + 13069215472.

It is an arithmetic number, because the mean of its divisors is an integer number (13069215472).

Almost surely, 2^26138430943 is an apocalyptic number.

26138430943 is a deficient number, since it is larger than the sum of its proper divisors (1).

26138430943 is an equidigital number, since it uses as much as digits as its factorization.

26138430943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 26138430943 in words is "twenty-six billion, one hundred thirty-eight million, four hundred thirty thousand, nine hundred forty-three".