26130534738 has 256 divisors, whose sum is σ = 74052403200. Its totient is φ = 5936958720.

The previous prime is 26130534733. The next prime is 26130534779. The reversal of 26130534738 is 83743503162.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 26130534738.

It is not an unprimeable number, because it can be changed into a prime (26130534733) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5852695 + ... + 5857157.

It is an arithmetic number, because the mean of its divisors is an integer number (289267200).

Almost surely, 2^26130534738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26130534738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37026201600).

26130534738 is an abundant number, since it is smaller than the sum of its proper divisors (47921868462).

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

26130534738 is a wasteful number, since it uses less digits than its factorization.

26130534738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 26130534738 in words is "twenty-six billion, one hundred thirty million, five hundred thirty-four thousand, seven hundred thirty-eight".