26201188507 has 16 divisors (see below), whose sum is σ = 29631067200. Its totient is φ = 22986767232.

The previous prime is 26201188483. The next prime is 26201188523. The reversal of 26201188507 is 70588110262.

It is not a de Polignac number, because 26201188507 - 2⁷ = 26201188379 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 26201188507.

It is not an unprimeable number, because it can be changed into a prime (26201188567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232132 + ... + 326017.

It is an arithmetic number, because the mean of its divisors is an integer number (1851941700).

Almost surely, 2^26201188507 is an apocalyptic number.

26201188507 is a deficient number, since it is larger than the sum of its proper divisors (3429878693).

26201188507 is a wasteful number, since it uses less digits than its factorization.

26201188507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558342.

The product of its (nonzero) digits is 53760, while the sum is 40.

Adding to 26201188507 its reverse (70588110262), we get a palindrome (96789298769).

The spelling of 26201188507 in words is "twenty-six billion, two hundred one million, one hundred eighty-eight thousand, five hundred seven".