26158137103 has 4 divisors (see below), whose sum is σ = 29895013840. Its totient is φ = 22421260368.

The previous prime is 26158137079. The next prime is 26158137169. The reversal of 26158137103 is 30173185162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26158137103 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 (26158137193) 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, 1868438358 + ... + 1868438371.

It is an arithmetic number, because the mean of its divisors is an integer number (7473753460).

Almost surely, 2^26158137103 is an apocalyptic number.

26158137103 is a deficient number, since it is larger than the sum of its proper divisors (3736876737).

26158137103 is an equidigital number, since it uses as much as digits as its factorization.

26158137103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736876736.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 26158137103 in words is "twenty-six billion, one hundred fifty-eight million, one hundred thirty-seven thousand, one hundred three".