20826725042 has 32 divisors (see below), whose sum is σ = 32131931520. Its totient is φ = 10120619520.

The previous prime is 20826725039. The next prime is 20826725063. The reversal of 20826725042 is 24052762802.

It is a junction number, because it is equal to n+sod(n) for n = 20826724987 and 20826725005.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6570434 + ... + 6573602.

It is an arithmetic number, because the mean of its divisors is an integer number (1004122860).

Almost surely, 2^20826725042 is an apocalyptic number.

20826725042 is a deficient number, since it is larger than the sum of its proper divisors (11305206478).

20826725042 is a wasteful number, since it uses less digits than its factorization.

20826725042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 20826725042 in words is "twenty billion, eight hundred twenty-six million, seven hundred twenty-five thousand, forty-two".