20487914496 has 495 divisors, whose sum is σ = 72186146967. Its totient is φ = 5771243520.

The previous prime is 20487914479. The next prime is 20487914533. The reversal of 20487914496 is 69441978402.

The square root of 20487914496 is 143136.

It is a perfect power (a square), and thus also a powerful number.

20487914496 is a `hidden beast` number, since 20 + 48 + 7 + 91 + 4 + 496 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 288562141 + ... + 288562211.

Almost surely, 2^20487914496 is an apocalyptic number.

20487914496 is the 143136-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20487914496

20487914496 is an abundant number, since it is smaller than the sum of its proper divisors (51698232471).

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

20487914496 is an frugal number, since it uses more digits than its factorization.

20487914496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 20487914496 in words is "twenty billion, four hundred eighty-seven million, nine hundred fourteen thousand, four hundred ninety-six".