26043400530 has 384 divisors, whose sum is σ = 84101794560. Its totient is φ = 5713182720.

The previous prime is 26043400519. The next prime is 26043400543. The reversal of 26043400530 is 3500434062.

26043400530 is a `hidden beast` number, since 2 + 604 + 3 + 4 + 0 + 0 + 53 + 0 = 666.

It is a super-2 number, since 2×26043400530² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 26043400494 and 26043400503.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 40629010 + ... + 40629650.

It is an arithmetic number, because the mean of its divisors is an integer number (219015090).

Almost surely, 2^26043400530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26043400530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42050897280).

26043400530 is an abundant number, since it is smaller than the sum of its proper divisors (58058394030).

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

26043400530 is a wasteful number, since it uses less digits than its factorization.

26043400530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 26043400530 its reverse (3500434062), we get a palindrome (29543834592).

The spelling of 26043400530 in words is "twenty-six billion, forty-three million, four hundred thousand, five hundred thirty".