26458946453 has 4 divisors (see below), whose sum is σ = 26459272128. Its totient is φ = 26458620780.

The previous prime is 26458946441. The next prime is 26458946509. The reversal of 26458946453 is 35464985462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35464985462 = 2 ⋅17732492731.

It is a cyclic number.

It is not a de Polignac number, because 26458946453 - 2¹⁸ = 26458684309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26458916453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70100 + ... + 240482.

It is an arithmetic number, because the mean of its divisors is an integer number (6614818032).

Almost surely, 2^26458946453 is an apocalyptic number.

It is an amenable number.

26458946453 is a deficient number, since it is larger than the sum of its proper divisors (325675).

26458946453 is a wasteful number, since it uses less digits than its factorization.

26458946453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325674.

The product of its digits is 24883200, while the sum is 56.

The spelling of 26458946453 in words is "twenty-six billion, four hundred fifty-eight million, nine hundred forty-six thousand, four hundred fifty-three".