985215262783 has 2 divisors, whose sum is σ = 985215262784. Its totient is φ = 985215262782.

The previous prime is 985215262753. The next prime is 985215262859. The reversal of 985215262783 is 387262512589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985215262783 - 2⁵ = 985215262751 is a prime.

It is a super-2 number, since 2×985215262783² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985215262723) 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, 492607631391 + 492607631392.

It is an arithmetic number, because the mean of its divisors is an integer number (492607631392).

Almost surely, 2^985215262783 is an apocalyptic number.

985215262783 is a deficient number, since it is larger than the sum of its proper divisors (1).

985215262783 is an equidigital number, since it uses as much as digits as its factorization.

985215262783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 58.

The spelling of 985215262783 in words is "nine hundred eighty-five billion, two hundred fifteen million, two hundred sixty-two thousand, seven hundred eighty-three".