26683178345 has 8 divisors (see below), whose sum is σ = 32025161160. Its totient is φ = 21342977920.

The previous prime is 26683178339. The next prime is 26683178351. The reversal of 26683178345 is 54387138662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26683178339) and next prime (26683178351).

It can be written as a sum of positive squares in 4 ways, for example, as 2520341209 + 24162837136 = 50203^2 + 155444^2 .

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

It is not a de Polignac number, because 26683178345 - 2¹⁴ = 26683161961 is a prime.

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, 412436 + ... + 472725.

It is an arithmetic number, because the mean of its divisors is an integer number (4003145145).

Almost surely, 2^26683178345 is an apocalyptic number.

It is an amenable number.

26683178345 is a deficient number, since it is larger than the sum of its proper divisors (5341982815).

26683178345 is an equidigital number, since it uses as much as digits as its factorization.

26683178345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891195.

The product of its digits is 5806080, while the sum is 53.

The spelling of 26683178345 in words is "twenty-six billion, six hundred eighty-three million, one hundred seventy-eight thousand, three hundred forty-five".