19483925161 has 2 divisors, whose sum is σ = 19483925162. Its totient is φ = 19483925160.

The previous prime is 19483925039. The next prime is 19483925173. The reversal of 19483925161 is 16152938491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10091407936 + 9392517225 = 100456^2 + 96915^2 .

It is a cyclic number.

It is not a de Polignac number, because 19483925161 - 2³¹ = 17336441513 is a prime.

It is not a weakly prime, because it can be changed into another prime (19483025161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9741962580 + 9741962581.

It is an arithmetic number, because the mean of its divisors is an integer number (9741962581).

Almost surely, 2^19483925161 is an apocalyptic number.

It is an amenable number.

19483925161 is a deficient number, since it is larger than the sum of its proper divisors (1).

19483925161 is an equidigital number, since it uses as much as digits as its factorization.

19483925161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 49.

The spelling of 19483925161 in words is "nineteen billion, four hundred eighty-three million, nine hundred twenty-five thousand, one hundred sixty-one".