26140655594 has 4 divisors (see below), whose sum is σ = 39210983394. Its totient is φ = 13070327796.

The previous prime is 26140655549. The next prime is 26140655609. The reversal of 26140655594 is 49555604162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49555604162 = 2 ⋅24777802081.

It can be written as a sum of positive squares in only one way, i.e., 17911807225 + 8228848369 = 133835^2 + 90713^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535163897 + ... + 6535163900.

Almost surely, 2^26140655594 is an apocalyptic number.

26140655594 is a deficient number, since it is larger than the sum of its proper divisors (13070327800).

26140655594 is a wasteful number, since it uses less digits than its factorization.

26140655594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13070327799.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 26140655594 in words is "twenty-six billion, one hundred forty million, six hundred fifty-five thousand, five hundred ninety-four".