26438320476 has 36 divisors (see below), whose sum is σ = 67019551872. Its totient is φ = 8787803904.

The previous prime is 26438320471. The next prime is 26438320477. The reversal of 26438320476 is 67402383462.

26438320476 is a `hidden beast` number, since 2 + 6 + 438 + 3 + 204 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26438320471) 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 11 ways as a sum of consecutive naturals, for example, 1027516 + ... + 1052931.

Almost surely, 2^26438320476 is an apocalyptic number.

It is an amenable number.

26438320476 is an abundant number, since it is smaller than the sum of its proper divisors (40581231396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26438320476 is a wasteful number, since it uses less digits than its factorization.

26438320476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080810 (or 2080805 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 26438320476 in words is "twenty-six billion, four hundred thirty-eight million, three hundred twenty thousand, four hundred seventy-six".