163951928047 has 2 divisors, whose sum is σ = 163951928048. Its totient is φ = 163951928046.

The previous prime is 163951928039. The next prime is 163951928057. The reversal of 163951928047 is 740829159361.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163951928047 - 2³ = 163951928039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163951928027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81975964023 + 81975964024.

It is an arithmetic number, because the mean of its divisors is an integer number (81975964024).

It is a 1-persistent number, because it is pandigital, but 2⋅163951928047 = 327903856094 is not.

Almost surely, 2^163951928047 is an apocalyptic number.

163951928047 is a deficient number, since it is larger than the sum of its proper divisors (1).

163951928047 is an equidigital number, since it uses as much as digits as its factorization.

163951928047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 163951928047 in words is "one hundred sixty-three billion, nine hundred fifty-one million, nine hundred twenty-eight thousand, forty-seven".