20347223242726 has 32 divisors (see below), whose sum is σ = 31297425961536. Its totient is φ = 9917728128000.

The previous prime is 20347223242669. The next prime is 20347223242777. The reversal of 20347223242726 is 62724232274302.

It is a happy number.

It is a super-2 number, since 2×20347223242726² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375930946 + ... + 375985066.

It is an arithmetic number, because the mean of its divisors is an integer number (978044561298).

Almost surely, 2^{20347223242726} is an apocalyptic number.

20347223242726 is a deficient number, since it is larger than the sum of its proper divisors (10950202718810).

20347223242726 is a wasteful number, since it uses less digits than its factorization.

20347223242726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81568.

The product of its (nonzero) digits is 2709504, while the sum is 46.

The spelling of 20347223242726 in words is "twenty trillion, three hundred forty-seven billion, two hundred twenty-three million, two hundred forty-two thousand, seven hundred twenty-six".