26493563469 has 16 divisors (see below), whose sum is σ = 36250486272. Its totient is φ = 17201877168.

The previous prime is 26493563443. The next prime is 26493563543. The reversal of 26493563469 is 96436539462.

It is not a de Polignac number, because 26493563469 - 2⁹ = 26493562957 is a prime.

It is a super-2 number, since 2×26493563469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26493568469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251169 + ... + 340694.

It is an arithmetic number, because the mean of its divisors is an integer number (2265655392).

Almost surely, 2^26493563469 is an apocalyptic number.

It is an amenable number.

26493563469 is a deficient number, since it is larger than the sum of its proper divisors (9756922803).

26493563469 is a wasteful number, since it uses less digits than its factorization.

26493563469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592256.

The product of its digits is 25194240, while the sum is 57.

The spelling of 26493563469 in words is "twenty-six billion, four hundred ninety-three million, five hundred sixty-three thousand, four hundred sixty-nine".