20476503472 has 10 divisors (see below), whose sum is σ = 39673225508. Its totient is φ = 10238251728.

The previous prime is 20476503469. The next prime is 20476503491. The reversal of 20476503472 is 27430567402.

It is a happy number.

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 as a sum of consecutive naturals, namely, 639890718 + ... + 639890749.

Almost surely, 2^20476503472 is an apocalyptic number.

It is an amenable number.

20476503472 is a deficient number, since it is larger than the sum of its proper divisors (19196722036).

20476503472 is a wasteful number, since it uses less digits than its factorization.

20476503472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279781475 (or 1279781469 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 40.

The spelling of 20476503472 in words is "twenty billion, four hundred seventy-six million, five hundred three thousand, four hundred seventy-two".