16425247213757 has 2 divisors, whose sum is σ = 16425247213758. Its totient is φ = 16425247213756.

The previous prime is 16425247213681. The next prime is 16425247213769. The reversal of 16425247213757 is 75731274252461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14065395148996 + 2359852064761 = 3750386^2 + 1536181^2 .

It is an emirp because it is prime and its reverse (75731274252461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16425247213757 - 2¹⁶ = 16425247148221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16425247213777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8212623606878 + 8212623606879.

It is an arithmetic number, because the mean of its divisors is an integer number (8212623606879).

Almost surely, 2^{16425247213757} is an apocalyptic number.

It is an amenable number.

16425247213757 is a deficient number, since it is larger than the sum of its proper divisors (1).

16425247213757 is an equidigital number, since it uses as much as digits as its factorization.

16425247213757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19756800, while the sum is 56.

The spelling of 16425247213757 in words is "sixteen trillion, four hundred twenty-five billion, two hundred forty-seven million, two hundred thirteen thousand, seven hundred fifty-seven".