156934381853 has 2 divisors, whose sum is σ = 156934381854. Its totient is φ = 156934381852.

The previous prime is 156934381819. The next prime is 156934381883. The reversal of 156934381853 is 358183439651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156576907204 + 357474649 = 395698^2 + 18907^2 .

It is a cyclic number.

It is not a de Polignac number, because 156934381853 - 2⁶ = 156934381789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156934381883) 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, 78467190926 + 78467190927.

It is an arithmetic number, because the mean of its divisors is an integer number (78467190927).

Almost surely, 2^156934381853 is an apocalyptic number.

It is an amenable number.

156934381853 is a deficient number, since it is larger than the sum of its proper divisors (1).

156934381853 is an equidigital number, since it uses as much as digits as its factorization.

156934381853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 56.

The spelling of 156934381853 in words is "one hundred fifty-six billion, nine hundred thirty-four million, three hundred eighty-one thousand, eight hundred fifty-three".