20726574428718 has 48 divisors (see below), whose sum is σ = 44957796624000. Its totient is φ = 6901133722560.

The previous prime is 20726574428717. The next prime is 20726574428723. The reversal of 20726574428718 is 81782447562702.

20726574428718 is a `hidden beast` number, since 2 + 0 + 7 + 2 + 6 + 574 + 42 + 8 + 7 + 18 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20726574428717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177411868 + ... + 177528656.

It is an arithmetic number, because the mean of its divisors is an integer number (936620763000).

Almost surely, 2^{20726574428718} is an apocalyptic number.

20726574428718 is an abundant number, since it is smaller than the sum of its proper divisors (24231222195282).

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

20726574428718 is a wasteful number, since it uses less digits than its factorization.

20726574428718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127737 (or 127734 counting only the distinct ones).

The product of its (nonzero) digits is 84295680, while the sum is 63.

The spelling of 20726574428718 in words is "twenty trillion, seven hundred twenty-six billion, five hundred seventy-four million, four hundred twenty-eight thousand, seven hundred eighteen".