985091819707 has 2 divisors, whose sum is σ = 985091819708. Its totient is φ = 985091819706.

The previous prime is 985091819681. The next prime is 985091819753. The reversal of 985091819707 is 707918190589.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (707918190589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985091819707 - 2²³ = 985083431099 is a prime.

It is not a weakly prime, because it can be changed into another prime (985091819797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492545909853 + 492545909854.

It is an arithmetic number, because the mean of its divisors is an integer number (492545909854).

Almost surely, 2^985091819707 is an apocalyptic number.

985091819707 is a deficient number, since it is larger than the sum of its proper divisors (1).

985091819707 is an equidigital number, since it uses as much as digits as its factorization.

985091819707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 64.

The spelling of 985091819707 in words is "nine hundred eighty-five billion, ninety-one million, eight hundred nineteen thousand, seven hundred seven".