20493481612 has 24 divisors (see below), whose sum is σ = 37039342592. Its totient is φ = 9911149200.

The previous prime is 20493481607. The next prime is 20493481633. The reversal of 20493481612 is 21618439402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208273 + ... + 290455.

Almost surely, 2^20493481612 is an apocalyptic number.

It is an amenable number.

20493481612 is a deficient number, since it is larger than the sum of its proper divisors (16545860980).

20493481612 is a wasteful number, since it uses less digits than its factorization.

20493481612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84229 (or 84227 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 20493481612 in words is "twenty billion, four hundred ninety-three million, four hundred eighty-one thousand, six hundred twelve".