16257062489 has 2 divisors, whose sum is σ = 16257062490. Its totient is φ = 16257062488.

The previous prime is 16257062467. The next prime is 16257062557. The reversal of 16257062489 is 98426075261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14485326025 + 1771736464 = 120355^2 + 42092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16257062489 is a prime.

It is not a weakly prime, because it can be changed into another prime (16257062449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8128531244 + 8128531245.

It is an arithmetic number, because the mean of its divisors is an integer number (8128531245).

Almost surely, 2^16257062489 is an apocalyptic number.

It is an amenable number.

16257062489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16257062489 is an equidigital number, since it uses as much as digits as its factorization.

16257062489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 16257062489 in words is "sixteen billion, two hundred fifty-seven million, sixty-two thousand, four hundred eighty-nine".