26556613530 has 32 divisors (see below), whose sum is σ = 63749934144. Its totient is φ = 7080201216.

The previous prime is 26556613469. The next prime is 26556613561. The reversal of 26556613530 is 3531665562.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43962 + ... + 234618.

It is an arithmetic number, because the mean of its divisors is an integer number (1992185442).

Almost surely, 2^26556613530 is an apocalyptic number.

26556613530 is an abundant number, since it is smaller than the sum of its proper divisors (37193320614).

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

26556613530 is a wasteful number, since it uses less digits than its factorization.

26556613530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195310.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 26556613530 in words is "twenty-six billion, five hundred fifty-six million, six hundred thirteen thousand, five hundred thirty".