19880830537 has 2 divisors, whose sum is σ = 19880830538. Its totient is φ = 19880830536.

The previous prime is 19880830507. The next prime is 19880830561. The reversal of 19880830537 is 73503808891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18189647161 + 1691183376 = 134869^2 + 41124^2 .

It is a cyclic number.

It is not a de Polignac number, because 19880830537 - 2¹⁹ = 19880306249 is a prime.

It is not a weakly prime, because it can be changed into another prime (19880830507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9940415268 + 9940415269.

It is an arithmetic number, because the mean of its divisors is an integer number (9940415269).

Almost surely, 2^19880830537 is an apocalyptic number.

It is an amenable number.

19880830537 is a deficient number, since it is larger than the sum of its proper divisors (1).

19880830537 is an equidigital number, since it uses as much as digits as its factorization.

19880830537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 19880830537 in words is "nineteen billion, eight hundred eighty million, eight hundred thirty thousand, five hundred thirty-seven".