16442403287 has 2 divisors, whose sum is σ = 16442403288. Its totient is φ = 16442403286.

The previous prime is 16442403283. The next prime is 16442403353. The reversal of 16442403287 is 78230424461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16442403287 - 2² = 16442403283 is a prime.

It is a super-3 number, since 3×16442403287³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16442403283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221201643 + 8221201644.

It is an arithmetic number, because the mean of its divisors is an integer number (8221201644).

Almost surely, 2^16442403287 is an apocalyptic number.

16442403287 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442403287 is an equidigital number, since it uses as much as digits as its factorization.

16442403287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 16442403287 in words is "sixteen billion, four hundred forty-two million, four hundred three thousand, two hundred eighty-seven".