26010061603 has 4 divisors (see below), whose sum is σ = 26146240128. Its totient is φ = 25873883080.

The previous prime is 26010061547. The next prime is 26010061607. The reversal of 26010061603 is 30616001062.

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-26010061603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26010061607) 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, 68088976 + ... + 68089357.

It is an arithmetic number, because the mean of its divisors is an integer number (6536560032).

Almost surely, 2^26010061603 is an apocalyptic number.

26010061603 is a deficient number, since it is larger than the sum of its proper divisors (136178525).

26010061603 is a wasteful number, since it uses less digits than its factorization.

26010061603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136178524.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 26010061603 its reverse (30616001062), we get a palindrome (56626062665).

The spelling of 26010061603 in words is "twenty-six billion, ten million, sixty-one thousand, six hundred three".