26768051665 has 8 divisors (see below), whose sum is σ = 32235167808. Its totient is φ = 21338770800.

The previous prime is 26768051593. The next prime is 26768051689. The reversal of 26768051665 is 56615086762.

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

It is not a de Polignac number, because 26768051665 - 2¹¹ = 26768049617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9457261 + ... + 9460090.

It is an arithmetic number, because the mean of its divisors is an integer number (4029395976).

Almost surely, 2^26768051665 is an apocalyptic number.

It is an amenable number.

26768051665 is a deficient number, since it is larger than the sum of its proper divisors (5467116143).

26768051665 is a wasteful number, since it uses less digits than its factorization.

26768051665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18917639.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 26768051665 in words is "twenty-six billion, seven hundred sixty-eight million, fifty-one thousand, six hundred sixty-five".