26994961593 has 6 divisors (see below), whose sum is σ = 38992722314. Its totient is φ = 17996641056.

The previous prime is 26994961571. The next prime is 26994961621. The reversal of 26994961593 is 39516949962.

26994961593 is a `hidden beast` number, since 2 + 6 + 9 + 9 + 4 + 9 + 615 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22971342969 + 4023618624 = 151563^2 + 63432^2 .

It is not a de Polignac number, because 26994961593 - 2¹⁷ = 26994830521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26994961593.

It is not an unprimeable number, because it can be changed into a prime (26994962593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1499720080 + ... + 1499720097.

Almost surely, 2^26994961593 is an apocalyptic number.

It is an amenable number.

26994961593 is a deficient number, since it is larger than the sum of its proper divisors (11997760721).

26994961593 is a wasteful number, since it uses less digits than its factorization.

26994961593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999440183 (or 2999440180 counting only the distinct ones).

The product of its digits is 28343520, while the sum is 63.

The spelling of 26994961593 in words is "twenty-six billion, nine hundred ninety-four million, nine hundred sixty-one thousand, five hundred ninety-three".