26471561511 has 48 divisors (see below), whose sum is σ = 38251390464. Its totient is φ = 16271599872.

The previous prime is 26471561507. The next prime is 26471561513. The reversal of 26471561511 is 11516517462.

It is not a de Polignac number, because 26471561511 - 2² = 26471561507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26471561511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26471561513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4994815 + ... + 5000111.

It is an arithmetic number, because the mean of its divisors is an integer number (796903968).

Almost surely, 2^26471561511 is an apocalyptic number.

26471561511 is a deficient number, since it is larger than the sum of its proper divisors (11779828953).

26471561511 is a wasteful number, since it uses less digits than its factorization.

26471561511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460 (or 5437 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The spelling of 26471561511 in words is "twenty-six billion, four hundred seventy-one million, five hundred sixty-one thousand, five hundred eleven".