16251743873 has 2 divisors, whose sum is σ = 16251743874. Its totient is φ = 16251743872.

The previous prime is 16251743867. The next prime is 16251743897. The reversal of 16251743873 is 37834715261.

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., 11644999744 + 4606744129 = 107912^2 + 67873^2 .

It is a cyclic number.

It is not a de Polignac number, because 16251743873 - 2¹⁰ = 16251742849 is a prime.

It is not a weakly prime, because it can be changed into another prime (16251743813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8125871936 + 8125871937.

It is an arithmetic number, because the mean of its divisors is an integer number (8125871937).

Almost surely, 2^16251743873 is an apocalyptic number.

It is an amenable number.

16251743873 is a deficient number, since it is larger than the sum of its proper divisors (1).

16251743873 is an equidigital number, since it uses as much as digits as its factorization.

16251743873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The spelling of 16251743873 in words is "sixteen billion, two hundred fifty-one million, seven hundred forty-three thousand, eight hundred seventy-three".