20425337764 has 24 divisors (see below), whose sum is σ = 38770854080. Its totient is φ = 9359254944.

The previous prime is 20425337719. The next prime is 20425337771. The reversal of 20425337764 is 46773352402.

It is a self number, because there is not a number n which added to its sum of digits gives 20425337764.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405704 + ... + 1420159.

Almost surely, 2^20425337764 is an apocalyptic number.

It is an amenable number.

20425337764 is a deficient number, since it is larger than the sum of its proper divisors (18345516316).

20425337764 is a wasteful number, since it uses less digits than its factorization.

20425337764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826019 (or 2826017 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 43.

The spelling of 20425337764 in words is "twenty billion, four hundred twenty-five million, three hundred thirty-seven thousand, seven hundred sixty-four".