20496473212 has 48 divisors (see below), whose sum is σ = 38335360000. Its totient is φ = 9560700864.

The previous prime is 20496473197. The next prime is 20496473213. The reversal of 20496473212 is 21237469402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20496473213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2379289 + ... + 2387887.

Almost surely, 2^20496473212 is an apocalyptic number.

It is an amenable number.

20496473212 is a deficient number, since it is larger than the sum of its proper divisors (17838886788).

20496473212 is a wasteful number, since it uses less digits than its factorization.

20496473212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9098 (or 9096 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 20496473212 in words is "twenty billion, four hundred ninety-six million, four hundred seventy-three thousand, two hundred twelve".