20846452859492 has 18 divisors (see below), whose sum is σ = 39503411411058. Its totient is φ = 9621439780992.

The previous prime is 20846452859473. The next prime is 20846452859509. The reversal of 20846452859492 is 29495825464802.

It can be written as a sum of positive squares in 3 ways, for example, as 531024093796 + 20315428765696 = 728714^2 + 4507264^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15418973333 + ... + 15418974684.

It is an arithmetic number, because the mean of its divisors is an integer number (2194633967281).

Almost surely, 2^{20846452859492} is an apocalyptic number.

It is an amenable number.

20846452859492 is a deficient number, since it is larger than the sum of its proper divisors (18656958551566).

20846452859492 is a wasteful number, since it uses less digits than its factorization.

20846452859492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30837948047 (or 30837948032 counting only the distinct ones).

The product of its (nonzero) digits is 398131200, while the sum is 68.

The spelling of 20846452859492 in words is "twenty trillion, eight hundred forty-six billion, four hundred fifty-two million, eight hundred fifty-nine thousand, four hundred ninety-two".