985234211731 has 16 divisors (see below), whose sum is σ = 1230495222528. Its totient is φ = 766370426400.

The previous prime is 985234211719. The next prime is 985234211779. The reversal of 985234211731 is 137112432589.

It is a cyclic number.

It is not a de Polignac number, because 985234211731 - 2⁵ = 985234211699 is a prime.

It is a super-2 number, since 2×985234211731² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (985234211701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11160280 + ... + 11248213.

It is an arithmetic number, because the mean of its divisors is an integer number (76905951408).

Almost surely, 2^985234211731 is an apocalyptic number.

985234211731 is a deficient number, since it is larger than the sum of its proper divisors (245261010797).

985234211731 is a wasteful number, since it uses less digits than its factorization.

985234211731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22409082.

The product of its digits is 362880, while the sum is 46.

The spelling of 985234211731 in words is "nine hundred eighty-five billion, two hundred thirty-four million, two hundred eleven thousand, seven hundred thirty-one".