26916526876997 has 8 divisors (see below), whose sum is σ = 27059225252760. Its totient is φ = 26773861847040.

The previous prime is 26916526876951. The next prime is 26916526876999. The reversal of 26916526876997 is 79967862561962.

It is a Cunningham number, because it is equal to 5188114²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 6521557342756 + 20394969534241 = 2553734^2 + 4516079^2 .

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 26916526876997 - 2⁶ = 26916526876933 is a prime.

It is a super-3 number, since 3×26916526876997³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26916526876999) 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, 6716954 + ... + 9947387.

It is an arithmetic number, because the mean of its divisors is an integer number (3382403156595).

Almost surely, 2^{26916526876997} is an apocalyptic number.

It is an amenable number.

26916526876997 is a deficient number, since it is larger than the sum of its proper divisors (142698375763).

26916526876997 is a wasteful number, since it uses less digits than its factorization.

26916526876997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16672903.

The product of its digits is 7407106560, while the sum is 83.

The spelling of 26916526876997 in words is "twenty-six trillion, nine hundred sixteen billion, five hundred twenty-six million, eight hundred seventy-six thousand, nine hundred ninety-seven".