16812089747 has 2 divisors, whose sum is σ = 16812089748. Its totient is φ = 16812089746.

The previous prime is 16812089719. The next prime is 16812089779. The reversal of 16812089747 is 74798021861.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16812089747 - 2¹² = 16812085651 is a prime.

It is a super-2 number, since 2×16812089747² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16812089797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8406044873 + 8406044874.

It is an arithmetic number, because the mean of its divisors is an integer number (8406044874).

Almost surely, 2^16812089747 is an apocalyptic number.

16812089747 is a deficient number, since it is larger than the sum of its proper divisors (1).

16812089747 is an equidigital number, since it uses as much as digits as its factorization.

16812089747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 16812089747 in words is "sixteen billion, eight hundred twelve million, eighty-nine thousand, seven hundred forty-seven".