26404146522 has 96 divisors (see below), whose sum is σ = 63678590976. Its totient is φ = 7852204800.

The previous prime is 26404146443. The next prime is 26404146539. The reversal of 26404146522 is 22564140462.

26404146522 is a `hidden beast` number, since 2 + 640 + 4 + 1 + 4 + 6 + 5 + 2 + 2 = 666.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 7186878 + ... + 7190550.

It is an arithmetic number, because the mean of its divisors is an integer number (663318656).

Almost surely, 2^26404146522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26404146522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31839295488).

26404146522 is an abundant number, since it is smaller than the sum of its proper divisors (37274444454).

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

26404146522 is a wasteful number, since it uses less digits than its factorization.

26404146522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716 (or 4713 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 26404146522 its reverse (22564140462), we get a palindrome (48968286984).

The spelling of 26404146522 in words is "twenty-six billion, four hundred four million, one hundred forty-six thousand, five hundred twenty-two".