26360131421 has 12 divisors (see below), whose sum is σ = 29528085780. Its totient is φ = 23493375360.

The previous prime is 26360131417. The next prime is 26360131453. The reversal of 26360131421 is 12413106362.

It can be written as a sum of positive squares in 6 ways, for example, as 2189210521 + 24170920900 = 46789^2 + 155470^2 .

It is not a de Polignac number, because 26360131421 - 2² = 26360131417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26360131471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2684360 + ... + 2694161.

It is an arithmetic number, because the mean of its divisors is an integer number (2460673815).

Almost surely, 2^26360131421 is an apocalyptic number.

It is an amenable number.

26360131421 is a deficient number, since it is larger than the sum of its proper divisors (3167954359).

26360131421 is a wasteful number, since it uses less digits than its factorization.

26360131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5378576 (or 5378563 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 26360131421 its reverse (12413106362), we get a palindrome (38773237783).

The spelling of 26360131421 in words is "twenty-six billion, three hundred sixty million, one hundred thirty-one thousand, four hundred twenty-one".