26413750013 has 4 divisors (see below), whose sum is σ = 30187142880. Its totient is φ = 22640357148.

The previous prime is 26413750001. The next prime is 26413750021. The reversal of 26413750013 is 31005731462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31005731462 = 2 ⋅15502865731.

It is a cyclic number.

It is not a de Polignac number, because 26413750013 - 2¹⁸ = 26413487869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26413750063) 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, 1886696423 + ... + 1886696436.

It is an arithmetic number, because the mean of its divisors is an integer number (7546785720).

Almost surely, 2^26413750013 is an apocalyptic number.

It is an amenable number.

26413750013 is a deficient number, since it is larger than the sum of its proper divisors (3773392867).

26413750013 is an equidigital number, since it uses as much as digits as its factorization.

26413750013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773392866.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 26413750013 in words is "twenty-six billion, four hundred thirteen million, seven hundred fifty thousand, thirteen".