20494672612 has 48 divisors (see below), whose sum is σ = 36996319360. Its totient is φ = 9930615552.

The previous prime is 20494672607. The next prime is 20494672613. The reversal of 20494672612 is 21627649402.

It is not an unprimeable number, because it can be changed into a prime (20494672613) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4331464 + ... + 4336192.

Almost surely, 2^20494672612 is an apocalyptic number.

It is an amenable number.

20494672612 is a deficient number, since it is larger than the sum of its proper divisors (16501646748).

20494672612 is a wasteful number, since it uses less digits than its factorization.

20494672612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060 (or 5058 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 20494672612 in words is "twenty billion, four hundred ninety-four million, six hundred seventy-two thousand, six hundred twelve".