26020012604 has 12 divisors (see below), whose sum is σ = 45556186704. Its totient is φ = 13003959264.

The previous prime is 26020012591. The next prime is 26020012619. The reversal of 26020012604 is 40621002062.

It is a self number, because there is not a number n which added to its sum of digits gives 26020012604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502072 + ... + 1519295.

It is an arithmetic number, because the mean of its divisors is an integer number (3796348892).

Almost surely, 2^26020012604 is an apocalyptic number.

It is an amenable number.

26020012604 is a deficient number, since it is larger than the sum of its proper divisors (19536174100).

26020012604 is a wasteful number, since it uses less digits than its factorization.

26020012604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023524 (or 3023522 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 26020012604 its reverse (40621002062), we get a palindrome (66641014666).

The spelling of 26020012604 in words is "twenty-six billion, twenty million, twelve thousand, six hundred four".