26546624661 has 16 divisors (see below), whose sum is σ = 36542251008. Its totient is φ = 17124529200.

The previous prime is 26546624651. The next prime is 26546624677. The reversal of 26546624661 is 16642664562.

It is not a de Polignac number, because 26546624661 - 2²¹ = 26544527509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26546624661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26546624651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905056 + ... + 933926.

It is an arithmetic number, because the mean of its divisors is an integer number (2283890688).

Almost surely, 2^26546624661 is an apocalyptic number.

It is an amenable number.

26546624661 is a deficient number, since it is larger than the sum of its proper divisors (9995626347).

26546624661 is a wasteful number, since it uses less digits than its factorization.

26546624661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38792.

The product of its digits is 2488320, while the sum is 48.

The spelling of 26546624661 in words is "twenty-six billion, five hundred forty-six million, six hundred twenty-four thousand, six hundred sixty-one".