159783856087 has 2 divisors, whose sum is σ = 159783856088. Its totient is φ = 159783856086.

The previous prime is 159783856051. The next prime is 159783856093. The reversal of 159783856087 is 780658387951.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159783856087 is a prime.

It is a super-2 number, since 2×159783856087² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159783856187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79891928043 + 79891928044.

It is an arithmetic number, because the mean of its divisors is an integer number (79891928044).

Almost surely, 2^159783856087 is an apocalyptic number.

159783856087 is a deficient number, since it is larger than the sum of its proper divisors (1).

159783856087 is an equidigital number, since it uses as much as digits as its factorization.

159783856087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 101606400, while the sum is 67.

The spelling of 159783856087 in words is "one hundred fifty-nine billion, seven hundred eighty-three million, eight hundred fifty-six thousand, eighty-seven".