992239215085 has 32 divisors (see below), whose sum is σ = 1227099456000. Its totient is φ = 769937204736.

The previous prime is 992239215083. The next prime is 992239215133. The reversal of 992239215085 is 580512932299.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 992239215085 - 2¹ = 992239215083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992239215083) 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 in 31 ways as a sum of consecutive naturals, for example, 7620489 + ... + 7749601.

It is an arithmetic number, because the mean of its divisors is an integer number (38346858000).

Almost surely, 2^992239215085 is an apocalyptic number.

It is an amenable number.

992239215085 is a deficient number, since it is larger than the sum of its proper divisors (234860240915).

992239215085 is a wasteful number, since it uses less digits than its factorization.

992239215085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129525.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 992239215085 in words is "nine hundred ninety-two billion, two hundred thirty-nine million, two hundred fifteen thousand, eighty-five".