26435535126 has 256 divisors, whose sum is σ = 79125258240. Its totient is φ = 5650974720.

The previous prime is 26435535101. The next prime is 26435535127. The reversal of 26435535126 is 62153553462.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26435535127) 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, 1933125 + ... + 1946751.

It is an arithmetic number, because the mean of its divisors is an integer number (309083040).

Almost surely, 2^26435535126 is an apocalyptic number.

26435535126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26435535126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39562629120).

26435535126 is an abundant number, since it is smaller than the sum of its proper divisors (52689723114).

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

26435535126 is a wasteful number, since it uses less digits than its factorization.

26435535126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13699.

The product of its digits is 648000, while the sum is 42.

The spelling of 26435535126 in words is "twenty-six billion, four hundred thirty-five million, five hundred thirty-five thousand, one hundred twenty-six".