16347921763 has 2 divisors, whose sum is σ = 16347921764. Its totient is φ = 16347921762.

The previous prime is 16347921757. The next prime is 16347921773. The reversal of 16347921763 is 36712974361.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16347921763 - 2²¹ = 16345824611 is a prime.

It is not a weakly prime, because it can be changed into another prime (16347921713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8173960881 + 8173960882.

It is an arithmetic number, because the mean of its divisors is an integer number (8173960882).

Almost surely, 2^16347921763 is an apocalyptic number.

16347921763 is a deficient number, since it is larger than the sum of its proper divisors (1).

16347921763 is an equidigital number, since it uses as much as digits as its factorization.

16347921763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The spelling of 16347921763 in words is "sixteen billion, three hundred forty-seven million, nine hundred twenty-one thousand, seven hundred sixty-three".