19346048537 has 2 divisors, whose sum is σ = 19346048538. Its totient is φ = 19346048536.

The previous prime is 19346048479. The next prime is 19346048591. The reversal of 19346048537 is 73584064391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18809848201 + 536200336 = 137149^2 + 23156^2 .

It is an emirp because it is prime and its reverse (73584064391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19346048537 - 2⁶ = 19346048473 is a prime.

It is not a weakly prime, because it can be changed into another prime (19346018537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9673024268 + 9673024269.

It is an arithmetic number, because the mean of its divisors is an integer number (9673024269).

Almost surely, 2^19346048537 is an apocalyptic number.

It is an amenable number.

19346048537 is a deficient number, since it is larger than the sum of its proper divisors (1).

19346048537 is an equidigital number, since it uses as much as digits as its factorization.

19346048537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 19346048537 in words is "nineteen billion, three hundred forty-six million, forty-eight thousand, five hundred thirty-seven".