26158418603 has 4 divisors (see below), whose sum is σ = 26270686728. Its totient is φ = 26046150480.

The previous prime is 26158418597. The next prime is 26158418621. The reversal of 26158418603 is 30681485162.

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-26158418603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26158418683) 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, 56133713 + ... + 56134178.

It is an arithmetic number, because the mean of its divisors is an integer number (6567671682).

Almost surely, 2^26158418603 is an apocalyptic number.

26158418603 is a deficient number, since it is larger than the sum of its proper divisors (112268125).

26158418603 is a wasteful number, since it uses less digits than its factorization.

26158418603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112268124.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 26158418603 in words is "twenty-six billion, one hundred fifty-eight million, four hundred eighteen thousand, six hundred three".