26640934848 has 168 divisors, whose sum is σ = 83561627136. Its totient is φ = 8047987200.

The previous prime is 26640934819. The next prime is 26640934921. The reversal of 26640934848 is 84843904662.

It is a junction number, because it is equal to n+sod(n) for n = 26640934794 and 26640934803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2090865 + ... + 2103567.

Almost surely, 2^26640934848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26640934848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41780813568).

26640934848 is an abundant number, since it is smaller than the sum of its proper divisors (56920692288).

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

26640934848 is a wasteful number, since it uses less digits than its factorization.

26640934848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13063 (or 13050 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 26640934848 in words is "twenty-six billion, six hundred forty million, nine hundred thirty-four thousand, eight hundred forty-eight".