90320469188 has 12 divisors (see below), whose sum is σ = 161043101100. Its totient is φ = 44308154592.

The previous prime is 90320469179. The next prime is 90320469203. The reversal of 90320469188 is 88196402309.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37195751044 + 53124718144 = 192862^2 + 230488^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 213019763 + ... + 213020186.

It is an arithmetic number, because the mean of its divisors is an integer number (13420258425).

Almost surely, 2^90320469188 is an apocalyptic number.

It is an amenable number.

90320469188 is a deficient number, since it is larger than the sum of its proper divisors (70722631912).

90320469188 is a wasteful number, since it uses less digits than its factorization.

90320469188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426040006 (or 426040004 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 90320469188 in words is "ninety billion, three hundred twenty million, four hundred sixty-nine thousand, one hundred eighty-eight".