26545196539 has 4 divisors (see below), whose sum is σ = 26556775456. Its totient is φ = 26533617624.

The previous prime is 26545196537. The next prime is 26545196569. The reversal of 26545196539 is 93569154562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26545196539 - 2¹ = 26545196537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26545196539.

It is not an unprimeable number, because it can be changed into a prime (26545196537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5786019 + ... + 5790604.

It is an arithmetic number, because the mean of its divisors is an integer number (6639193864).

Almost surely, 2^26545196539 is an apocalyptic number.

26545196539 is a deficient number, since it is larger than the sum of its proper divisors (11578917).

26545196539 is a wasteful number, since it uses less digits than its factorization.

26545196539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11578916.

The product of its digits is 8748000, while the sum is 55.

The spelling of 26545196539 in words is "twenty-six billion, five hundred forty-five million, one hundred ninety-six thousand, five hundred thirty-nine".