26650261604 has 12 divisors (see below), whose sum is σ = 46639115628. Its totient is φ = 13324800000.

The previous prime is 26650261579. The next prime is 26650261607. The reversal of 26650261604 is 40616205662.

It can be written as a sum of positive squares in 2 ways, for example, as 9970022500 + 16680239104 = 99850^2 + 129152^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (26650261607) 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 3 ways as a sum of consecutive naturals, for example, 229604 + ... + 325604.

It is an arithmetic number, because the mean of its divisors is an integer number (3886592969).

Almost surely, 2^26650261604 is an apocalyptic number.

It is an amenable number.

26650261604 is a deficient number, since it is larger than the sum of its proper divisors (19988854024).

26650261604 is a wasteful number, since it uses less digits than its factorization.

26650261604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165406 (or 165404 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 26650261604 in words is "twenty-six billion, six hundred fifty million, two hundred sixty-one thousand, six hundred four".