26490224871 has 24 divisors (see below), whose sum is σ = 41998285056. Its totient is φ = 15956177040.

The previous prime is 26490224837. The next prime is 26490224911. The reversal of 26490224871 is 17842209462.

26490224871 is a `hidden beast` number, since 2 + 64 + 90 + 22 + 487 + 1 = 666.

It is not a de Polignac number, because 26490224871 - 2¹¹ = 26490222823 is a prime.

It is a super-2 number, since 2×26490224871² (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 (26490224801) 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 23 ways as a sum of consecutive naturals, for example, 804655 + ... + 836928.

It is an arithmetic number, because the mean of its divisors is an integer number (1749928544).

Almost surely, 2^26490224871 is an apocalyptic number.

26490224871 is a deficient number, since it is larger than the sum of its proper divisors (15508060185).

26490224871 is a wasteful number, since it uses less digits than its factorization.

26490224871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641763 (or 1641760 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 26490224871 in words is "twenty-six billion, four hundred ninety million, two hundred twenty-four thousand, eight hundred seventy-one".