26436634453 has 2 divisors, whose sum is σ = 26436634454. Its totient is φ = 26436634452.

The previous prime is 26436634423. The next prime is 26436634457. The reversal of 26436634453 is 35443663462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26314355089 + 122279364 = 162217^2 + 11058^2 .

It is a cyclic number.

It is not a de Polignac number, because 26436634453 - 2¹⁷ = 26436503381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26436634457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13218317226 + 13218317227.

It is an arithmetic number, because the mean of its divisors is an integer number (13218317227).

Almost surely, 2^26436634453 is an apocalyptic number.

It is an amenable number.

26436634453 is a deficient number, since it is larger than the sum of its proper divisors (1).

26436634453 is an equidigital number, since it uses as much as digits as its factorization.

26436634453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 46.

The spelling of 26436634453 in words is "twenty-six billion, four hundred thirty-six million, six hundred thirty-four thousand, four hundred fifty-three".