8783155317493 has 2 divisors, whose sum is σ = 8783155317494. Its totient is φ = 8783155317492.

The previous prime is 8783155317487. The next prime is 8783155317553. The reversal of 8783155317493 is 3947135513878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5087199052324 + 3695956265169 = 2255482^2 + 1922487^2 .

It is a cyclic number.

It is not a de Polignac number, because 8783155317493 - 2²¹ = 8783153220341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8783155117493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4391577658746 + 4391577658747.

It is an arithmetic number, because the mean of its divisors is an integer number (4391577658747).

Almost surely, 2^{8783155317493} is an apocalyptic number.

It is an amenable number.

8783155317493 is a deficient number, since it is larger than the sum of its proper divisors (1).

8783155317493 is an equidigital number, since it uses as much as digits as its factorization.

8783155317493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76204800, while the sum is 64.

The spelling of 8783155317493 in words is "eight trillion, seven hundred eighty-three billion, one hundred fifty-five million, three hundred seventeen thousand, four hundred ninety-three".