20568127746 has 32 divisors (see below), whose sum is σ = 41923215360. Its totient is φ = 6724949504.

The previous prime is 20568127711. The next prime is 20568127771. The reversal of 20568127746 is 64772186502.

It is a junction number, because it is equal to n+sod(n) for n = 20568127695 and 20568127704.

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, 1948210 + ... + 1958738.

It is an arithmetic number, because the mean of its divisors is an integer number (1310100480).

Almost surely, 2^20568127746 is an apocalyptic number.

20568127746 is an abundant number, since it is smaller than the sum of its proper divisors (21355087614).

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

20568127746 is a wasteful number, since it uses less digits than its factorization.

20568127746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16730.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 20568127746 in words is "twenty billion, five hundred sixty-eight million, one hundred twenty-seven thousand, seven hundred forty-six".