26305632636 has 96 divisors (see below), whose sum is σ = 64236243456. Its totient is φ = 8371584000.

The previous prime is 26305632559. The next prime is 26305632637. The reversal of 26305632636 is 63623650362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26305632637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4702201 + ... + 4707791.

It is an arithmetic number, because the mean of its divisors is an integer number (669127536).

Almost surely, 2^26305632636 is an apocalyptic number.

It is an amenable number.

26305632636 is an abundant number, since it is smaller than the sum of its proper divisors (37930610820).

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

26305632636 is a wasteful number, since it uses less digits than its factorization.

26305632636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5843 (or 5841 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 42.

The spelling of 26305632636 in words is "twenty-six billion, three hundred five million, six hundred thirty-two thousand, six hundred thirty-six".