26001201213 has 24 divisors (see below), whose sum is σ = 40451818680. Its totient is φ = 15998561280.

The previous prime is 26001201211. The next prime is 26001201217. The reversal of 26001201213 is 31210210062.

It can be written as a sum of positive squares in 4 ways, for example, as 4467986649 + 21533214564 = 66843^2 + 146742^2 .

It is not a de Polignac number, because 26001201213 - 2¹ = 26001201211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26001201211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1461733 + ... + 1479413.

It is an arithmetic number, because the mean of its divisors is an integer number (1685492445).

Almost surely, 2^26001201213 is an apocalyptic number.

It is an amenable number.

26001201213 is a deficient number, since it is larger than the sum of its proper divisors (14450617467).

26001201213 is a wasteful number, since it uses less digits than its factorization.

26001201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30269 (or 30266 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 26001201213 its reverse (31210210062), we get a palindrome (57211411275).

The spelling of 26001201213 in words is "twenty-six billion, one million, two hundred one thousand, two hundred thirteen".