985441377636 has 27 divisors (see below), whose sum is σ = 2490991871641. Its totient is φ = 328478473824.

The previous prime is 985441377619. The next prime is 985441377649. The reversal of 985441377636 is 636773144589.

It is a happy number.

The square root of 985441377636 is 992694.

It is a perfect power (a square), and thus also a powerful number.

985441377636 is a `hidden beast` number, since 9 + 8 + 544 + 13 + 7 + 76 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 108896040036 + 876545337600 = 329994^2 + 936240^2 .

It is a Duffinian number.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 5873440 + ... + 6038888.

Almost surely, 2^985441377636 is an apocalyptic number.

985441377636 is the 992694-th square number.

It is an amenable number.

985441377636 is an abundant number, since it is smaller than the sum of its proper divisors (1505550494005).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

985441377636 is an frugal number, since it uses more digits than its factorization.

985441377636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330908 (or 165454 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 985441377636 in words is "nine hundred eighty-five billion, four hundred forty-one million, three hundred seventy-seven thousand, six hundred thirty-six".