26516536530 has 96 divisors (see below), whose sum is σ = 71271410112. Its totient is φ = 6306917760.

The previous prime is 26516536523. The next prime is 26516536531. The reversal of 26516536530 is 3563561562.

It is not an unprimeable number, because it can be changed into a prime (26516536531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123477 + ... + 261303.

It is an arithmetic number, because the mean of its divisors is an integer number (742410522).

Almost surely, 2^26516536530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26516536530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35635705056).

26516536530 is an abundant number, since it is smaller than the sum of its proper divisors (44754873582).

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

26516536530 is a wasteful number, since it uses less digits than its factorization.

26516536530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137912 (or 137901 counting only the distinct ones).

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

The spelling of 26516536530 in words is "twenty-six billion, five hundred sixteen million, five hundred thirty-six thousand, five hundred thirty".