26261420210 has 16 divisors (see below), whose sum is σ = 47342957976. Its totient is φ = 10488478848.

The previous prime is 26261420189. The next prime is 26261420219. The reversal of 26261420210 is 1202416262.

It can be written as a sum of positive squares in 4 ways, for example, as 23341422841 + 2919997369 = 152779^2 + 54037^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26261420210.

It is not an unprimeable number, because it can be changed into a prime (26261420219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004299 + ... + 2017358.

Almost surely, 2^26261420210 is an apocalyptic number.

26261420210 is a deficient number, since it is larger than the sum of its proper divisors (21081537766).

26261420210 is a wasteful number, since it uses less digits than its factorization.

26261420210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022317.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 26261420210 its reverse (1202416262), we get a palindrome (27463836472).

The spelling of 26261420210 in words is "twenty-six billion, two hundred sixty-one million, four hundred twenty thousand, two hundred ten".