26918049601 has 4 divisors (see below), whose sum is σ = 26919161392. Its totient is φ = 26916937812.

The previous prime is 26918049583. The next prime is 26918049647. The reversal of 26918049601 is 10694081962.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10694081962 = 2 ⋅5347040981.

It is a cyclic number.

It is not a de Polignac number, because 26918049601 - 2¹¹ = 26918047553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26918049671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518751 + ... + 568276.

It is an arithmetic number, because the mean of its divisors is an integer number (6729790348).

Almost surely, 2^26918049601 is an apocalyptic number.

It is an amenable number.

26918049601 is a deficient number, since it is larger than the sum of its proper divisors (1111791).

26918049601 is a wasteful number, since it uses less digits than its factorization.

26918049601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111790.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 26918049601 in words is "twenty-six billion, nine hundred eighteen million, forty-nine thousand, six hundred one".