26840346625 has 16 divisors (see below), whose sum is σ = 33672158208. Its totient is φ = 21359838000.

The previous prime is 26840346607. The next prime is 26840346649. The reversal of 26840346625 is 52664304862.

It is a de Polignac number, because none of the positive numbers 2^k-26840346625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538227 + ... + 585976.

It is an arithmetic number, because the mean of its divisors is an integer number (2104509888).

Almost surely, 2^26840346625 is an apocalyptic number.

26840346625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26840346625 is a deficient number, since it is larger than the sum of its proper divisors (6831811583).

26840346625 is a wasteful number, since it uses less digits than its factorization.

26840346625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124409 (or 1124399 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 26840346625 in words is "twenty-six billion, eight hundred forty million, three hundred forty-six thousand, six hundred twenty-five".