26506393769442 has 16 divisors (see below), whose sum is σ = 53016229888992. Its totient is φ = 8834890864800.

The previous prime is 26506393769441. The next prime is 26506393769477. The reversal of 26506393769442 is 24496739360562.

It is not an unprimeable number, because it can be changed into a prime (26506393769441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143331148 + ... + 143515959.

It is an arithmetic number, because the mean of its divisors is an integer number (3313514368062).

Almost surely, 2^{26506393769442} is an apocalyptic number.

26506393769442 is an abundant number, since it is smaller than the sum of its proper divisors (26509836119550).

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

26506393769442 is a wasteful number, since it uses less digits than its factorization.

26506393769442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286862513.

The product of its (nonzero) digits is 352719360, while the sum is 66.

The spelling of 26506393769442 in words is "twenty-six trillion, five hundred six billion, three hundred ninety-three million, seven hundred sixty-nine thousand, four hundred forty-two".