985676787381 has 64 divisors (see below), whose sum is σ = 1636576655616. Its totient is φ = 518433177600.

The previous prime is 985676787379. The next prime is 985676787409. The reversal of 985676787381 is 183787676589.

It is not a de Polignac number, because 985676787381 - 2¹ = 985676787379 is a prime.

It is a super-2 number, since 2×985676787381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985676787301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6761421 + ... + 6905661.

It is an arithmetic number, because the mean of its divisors is an integer number (25571510244).

Almost surely, 2^985676787381 is an apocalyptic number.

It is an amenable number.

985676787381 is a deficient number, since it is larger than the sum of its proper divisors (650899868235).

985676787381 is a wasteful number, since it uses less digits than its factorization.

985676787381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145222.

The product of its digits is 853493760, while the sum is 75.

The spelling of 985676787381 in words is "nine hundred eighty-five billion, six hundred seventy-six million, seven hundred eighty-seven thousand, three hundred eighty-one".