20425542676 has 24 divisors (see below), whose sum is σ = 44564821056. Its totient is φ = 7958003520.

The previous prime is 20425542661. The next prime is 20425542689. The reversal of 20425542676 is 67624552402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33158041 + ... + 33158656.

It is an arithmetic number, because the mean of its divisors is an integer number (1856867544).

Almost surely, 2^20425542676 is an apocalyptic number.

It is an amenable number.

20425542676 is an abundant number, since it is smaller than the sum of its proper divisors (24139278380).

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

20425542676 is a wasteful number, since it uses less digits than its factorization.

20425542676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66316719 (or 66316717 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 20425542676 in words is "twenty billion, four hundred twenty-five million, five hundred forty-two thousand, six hundred seventy-six".