20884732046 has 8 divisors (see below), whose sum is σ = 32407342920. Its totient is φ = 10082284408.

The previous prime is 20884732027. The next prime is 20884732051. The reversal of 20884732046 is 64023748802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20884732046² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20884731988 and 20884732006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180040736 + ... + 180040851.

It is an arithmetic number, because the mean of its divisors is an integer number (4050917865).

Almost surely, 2^20884732046 is an apocalyptic number.

20884732046 is a deficient number, since it is larger than the sum of its proper divisors (11522610874).

20884732046 is a wasteful number, since it uses less digits than its factorization.

20884732046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360081618.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 20884732046 in words is "twenty billion, eight hundred eighty-four million, seven hundred thirty-two thousand, forty-six".