26961639785 has 8 divisors (see below), whose sum is σ = 32382084096. Its totient is φ = 21550567600.

The previous prime is 26961639751. The next prime is 26961639833. The reversal of 26961639785 is 58793616962.

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

It is not a de Polignac number, because 26961639785 - 2⁶ = 26961639721 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, 2336699 + ... + 2348208.

It is an arithmetic number, because the mean of its divisors is an integer number (4047760512).

Almost surely, 2^26961639785 is an apocalyptic number.

It is an amenable number.

26961639785 is a deficient number, since it is larger than the sum of its proper divisors (5420444311).

26961639785 is a wasteful number, since it uses less digits than its factorization.

26961639785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686063.

The product of its digits is 29393280, while the sum is 62.

The spelling of 26961639785 in words is "twenty-six billion, nine hundred sixty-one million, six hundred thirty-nine thousand, seven hundred eighty-five".