26774426493 has 12 divisors (see below), whose sum is σ = 38703332928. Its totient is φ = 17836158600.

The previous prime is 26774426449. The next prime is 26774426507. The reversal of 26774426493 is 39462447762.

26774426493 is a `hidden beast` number, since 2 + 67 + 74 + 4 + 26 + 493 = 666.

It is not a de Polignac number, because 26774426493 - 2⁶ = 26774426429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26774426423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1108983 + ... + 1132868.

It is an arithmetic number, because the mean of its divisors is an integer number (3225277744).

Almost surely, 2^26774426493 is an apocalyptic number.

It is an amenable number.

26774426493 is a deficient number, since it is larger than the sum of its proper divisors (11928906435).

26774426493 is a wasteful number, since it uses less digits than its factorization.

26774426493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243184 (or 2243181 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 54.

The spelling of 26774426493 in words is "twenty-six billion, seven hundred seventy-four million, four hundred twenty-six thousand, four hundred ninety-three".