20826342337194 has 12 divisors (see below), whose sum is σ = 45123741730626. Its totient is φ = 6942114112392.

The previous prime is 20826342337189. The next prime is 20826342337249. The reversal of 20826342337194 is 49173324362802.

It is a happy number.

20826342337194 is a `hidden beast` number, since 2 + 0 + 8 + 2 + 63 + 423 + 3 + 71 + 94 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16646914083969 + 4179428253225 = 4080063^2 + 2044365^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20826342337194.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578509509349 + ... + 578509509384.

Almost surely, 2^{20826342337194} is an apocalyptic number.

20826342337194 is an abundant number, since it is smaller than the sum of its proper divisors (24297399393432).

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

20826342337194 is a wasteful number, since it uses less digits than its factorization.

20826342337194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157019018741 (or 1157019018738 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

Adding to 20826342337194 its reverse (49173324362802), we get a palindrome (69999666699996).

The spelling of 20826342337194 in words is "twenty trillion, eight hundred twenty-six billion, three hundred forty-two million, three hundred thirty-seven thousand, one hundred ninety-four".