985215262859 has 2 divisors, whose sum is σ = 985215262860. Its totient is φ = 985215262858.

The previous prime is 985215262783. The next prime is 985215262901. The reversal of 985215262859 is 958262512589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 985215262859 - 2¹² = 985215258763 is a prime.

It is a super-2 number, since 2×985215262859² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (985215162859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492607631429 + 492607631430.

It is an arithmetic number, because the mean of its divisors is an integer number (492607631430).

Almost surely, 2^985215262859 is an apocalyptic number.

985215262859 is a deficient number, since it is larger than the sum of its proper divisors (1).

985215262859 is an equidigital number, since it uses as much as digits as its factorization.

985215262859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104000, while the sum is 62.

The spelling of 985215262859 in words is "nine hundred eighty-five billion, two hundred fifteen million, two hundred sixty-two thousand, eight hundred fifty-nine".