26840379648 has 36 divisors (see below), whose sum is σ = 71434554128. Its totient is φ = 8946792960.

The previous prime is 26840379641. The next prime is 26840379649. The reversal of 26840379648 is 84697304862.

It is not an unprimeable number, because it can be changed into a prime (26840379641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17473438 + ... + 17474973.

Almost surely, 2^26840379648 is an apocalyptic number.

It is an amenable number.

26840379648 is an abundant number, since it is smaller than the sum of its proper divisors (44594174480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26840379648 is an equidigital number, since it uses as much as digits as its factorization.

26840379648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34948430 (or 34948416 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 26840379648 in words is "twenty-six billion, eight hundred forty million, three hundred seventy-nine thousand, six hundred forty-eight".