16488400673 has 2 divisors, whose sum is σ = 16488400674.
Its totient is φ = 16488400672.
The previous prime is 16488400667. The next prime is 16488400699. The reversal of 16488400673 is 37600488461.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16469102224 + 19298449 = 128332^2 + 4393^2
It is a cyclic number.
It is not a de Polignac number, because 16488400673 - 232 = 12193433377 is a prime.
It is not a weakly prime, because it can be changed into another prime (16488450673) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8244200336 + 8244200337.
It is an arithmetic number, because the mean of its divisors is an integer number (8244200337).
Almost surely, 216488400673 is an apocalyptic number.
It is an amenable number.
16488400673 is a deficient number, since it is larger than the sum of its proper divisors (1).
16488400673 is an equidigital number, since it uses as much as digits as its factorization.
16488400673 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 774144, while the sum is 47.
The spelling of 16488400673 in words is "sixteen billion, four hundred eighty-eight million, four hundred thousand, six hundred seventy-three".