26512654428 has 288 divisors, whose sum is σ = 77474880000. Its totient is φ = 7830950400.

The previous prime is 26512654423. The next prime is 26512654433. The reversal of 26512654428 is 82445621562.

26512654428 is a `hidden beast` number, since 2 + 65 + 1 + 26 + 544 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (26512654423) and next prime (26512654433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26512654423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53131323 + ... + 53131821.

It is an arithmetic number, because the mean of its divisors is an integer number (269010000).

Almost surely, 2^26512654428 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 26512654428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38737440000).

26512654428 is an abundant number, since it is smaller than the sum of its proper divisors (50962225572).

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

26512654428 is a wasteful number, since it uses less digits than its factorization.

26512654428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 629 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 26512654428 in words is "twenty-six billion, five hundred twelve million, six hundred fifty-four thousand, four hundred twenty-eight".