26162701638 has 8 divisors (see below), whose sum is σ = 52325403288. Its totient is φ = 8720900544.

The previous prime is 26162701637. The next prime is 26162701651. The reversal of 26162701638 is 83610726162.

It is a sphenic number, since it is the product of 3 distinct primes.

26162701638 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 26162701638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26162701637) 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, 2180225131 + ... + 2180225142.

It is an arithmetic number, because the mean of its divisors is an integer number (6540675411).

Almost surely, 2^26162701638 is an apocalyptic number.

26162701638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26162701638 is a wasteful number, since it uses less digits than its factorization.

26162701638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360450278.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 26162701638 in words is "twenty-six billion, one hundred sixty-two million, seven hundred one thousand, six hundred thirty-eight".