20572069754 has 16 divisors (see below), whose sum is σ = 31124581992. Its totient is φ = 10197547008.

The previous prime is 20572069711. The next prime is 20572069757. The reversal of 20572069754 is 45796027502.

It can be written as a sum of positive squares in 4 ways, for example, as 16583515729 + 3988554025 = 128777^2 + 63155^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20572069699 and 20572069708.

It is not an unprimeable number, because it can be changed into a prime (20572069757) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37922 + ... + 206354.

Almost surely, 2^20572069754 is an apocalyptic number.

20572069754 is a deficient number, since it is larger than the sum of its proper divisors (10552512238).

20572069754 is a wasteful number, since it uses less digits than its factorization.

20572069754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168961.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 20572069754 in words is "twenty billion, five hundred seventy-two million, sixty-nine thousand, seven hundred fifty-four".