26457404928 has 160 divisors (see below), whose sum is σ = 72235912320. Its totient is φ = 8602337280.

The previous prime is 26457404917. The next prime is 26457405061. The reversal of 26457404928 is 82940475462.

It is a congruent 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, 12414423 + ... + 12416553.

It is an arithmetic number, because the mean of its divisors is an integer number (451474452).

Almost surely, 2^26457404928 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 26457404928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36117956160).

26457404928 is an abundant number, since it is smaller than the sum of its proper divisors (45778507392).

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

26457404928 is a wasteful number, since it uses less digits than its factorization.

26457404928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 26457404928 in words is "twenty-six billion, four hundred fifty-seven million, four hundred four thousand, nine hundred twenty-eight".