26438570424 has 160 divisors (see below), whose sum is σ = 85470818400. Its totient is φ = 7478956800.

The previous prime is 26438570423. The next prime is 26438570453. The reversal of 26438570424 is 42407583462.

It is a happy number.

26438570424 is a `hidden beast` number, since 2 + 6 + 4 + 38 + 570 + 42 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 26438570424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26438570423) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 429282 + ... + 486990.

It is an arithmetic number, because the mean of its divisors is an integer number (534192615).

Almost surely, 2^26438570424 is an apocalyptic number.

26438570424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26438570424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42735409200).

26438570424 is an abundant number, since it is smaller than the sum of its proper divisors (59032247976).

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

26438570424 is a wasteful number, since it uses less digits than its factorization.

26438570424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57835 (or 57822 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 26438570424 in words is "twenty-six billion, four hundred thirty-eight million, five hundred seventy thousand, four hundred twenty-four".