26660285393 has 12 divisors (see below), whose sum is σ = 31405559040. Its totient is φ = 22562408232.

The previous prime is 26660285381. The next prime is 26660285429. The reversal of 26660285393 is 39358206662.

It is not a de Polignac number, because 26660285393 - 2¹⁰ = 26660284369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26660285363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3439721 + ... + 3447462.

It is an arithmetic number, because the mean of its divisors is an integer number (2617129920).

Almost surely, 2^26660285393 is an apocalyptic number.

It is an amenable number.

26660285393 is a deficient number, since it is larger than the sum of its proper divisors (4745273647).

26660285393 is an equidigital number, since it uses as much as digits as its factorization.

26660285393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6887276 (or 6887269 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 26660285393 in words is "twenty-six billion, six hundred sixty million, two hundred eighty-five thousand, three hundred ninety-three".