93789857487047 has 2 divisors, whose sum is σ = 93789857487048. Its totient is φ = 93789857487046.

The previous prime is 93789857487037. The next prime is 93789857487071. The reversal of 93789857487047 is 74078475898739.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 93789857487047 - 2¹⁴ = 93789857470663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93789857487047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93789857487017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46894928743523 + 46894928743524.

It is an arithmetic number, because the mean of its divisors is an integer number (46894928743524).

Almost surely, 2^{93789857487047} is an apocalyptic number.

93789857487047 is a deficient number, since it is larger than the sum of its proper divisors (1).

93789857487047 is an equidigital number, since it uses as much as digits as its factorization.

93789857487047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23897825280, while the sum is 86.

The spelling of 93789857487047 in words is "ninety-three trillion, seven hundred eighty-nine billion, eight hundred fifty-seven million, four hundred eighty-seven thousand, forty-seven".