19650324349 has 2 divisors, whose sum is σ = 19650324350. Its totient is φ = 19650324348.

The previous prime is 19650324347. The next prime is 19650324391. The reversal of 19650324349 is 94342305691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16888821849 + 2761502500 = 129957^2 + 52550^2 .

It is a cyclic number.

It is not a de Polignac number, because 19650324349 - 2¹ = 19650324347 is a prime.

It is a super-2 number, since 2×19650324349² (a number of 21 digits) contains 22 as substring.

Together with 19650324347, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 19650324299 and 19650324308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19650324347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9825162174 + 9825162175.

It is an arithmetic number, because the mean of its divisors is an integer number (9825162175).

Almost surely, 2^19650324349 is an apocalyptic number.

It is an amenable number.

19650324349 is a deficient number, since it is larger than the sum of its proper divisors (1).

19650324349 is an equidigital number, since it uses as much as digits as its factorization.

19650324349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 19650324349 in words is "nineteen billion, six hundred fifty million, three hundred twenty-four thousand, three hundred forty-nine".