26356606542 has 192 divisors, whose sum is σ = 70711280640. Its totient is φ = 6926860800.

The previous prime is 26356606517. The next prime is 26356606547. The reversal of 26356606542 is 24560665362.

26356606542 is a `hidden beast` number, since 2 + 6 + 35 + 6 + 606 + 5 + 4 + 2 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26356606547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25813992 + ... + 25815012.

It is an arithmetic number, because the mean of its divisors is an integer number (368287920).

Almost surely, 2^26356606542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26356606542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35355640320).

26356606542 is an abundant number, since it is smaller than the sum of its proper divisors (44354674098).

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

26356606542 is a wasteful number, since it uses less digits than its factorization.

26356606542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 26356606542 in words is "twenty-six billion, three hundred fifty-six million, six hundred six thousand, five hundred forty-two".