26765570550 has 24 divisors (see below), whose sum is σ = 66378615336. Its totient is φ = 7137485440.

The previous prime is 26765570543. The next prime is 26765570569. The reversal of 26765570550 is 5507556762.

It is a self number, because there is not a number n which added to its sum of digits gives 26765570550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89218419 + ... + 89218718.

It is an arithmetic number, because the mean of its divisors is an integer number (2765775639).

Almost surely, 2^26765570550 is an apocalyptic number.

26765570550 is an abundant number, since it is smaller than the sum of its proper divisors (39613044786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26765570550 is a wasteful number, since it uses less digits than its factorization.

26765570550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178437152 (or 178437147 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 48.

The spelling of 26765570550 in words is "twenty-six billion, seven hundred sixty-five million, five hundred seventy thousand, five hundred fifty".