26765619961 has 8 divisors (see below), whose sum is σ = 29572245504. Its totient is φ = 24095903040.

The previous prime is 26765619953. The next prime is 26765619989. The reversal of 26765619961 is 16991656762.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 26765619961 - 2³ = 26765619953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26765619896 and 26765619905.

It is not an unprimeable number, because it can be changed into a prime (26765619931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34226745 + ... + 34227526.

It is an arithmetic number, because the mean of its divisors is an integer number (3696530688).

Almost surely, 2^26765619961 is an apocalyptic number.

It is an amenable number.

26765619961 is a deficient number, since it is larger than the sum of its proper divisors (2806625543).

26765619961 is a wasteful number, since it uses less digits than its factorization.

26765619961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68454311.

The product of its digits is 7348320, while the sum is 58.

The spelling of 26765619961 in words is "twenty-six billion, seven hundred sixty-five million, six hundred nineteen thousand, nine hundred sixty-one".