90320840895 has 16 divisors (see below), whose sum is σ = 149496564960. Its totient is φ = 46510041984.

The previous prime is 90320840809. The next prime is 90320840927. The reversal of 90320840895 is 59804802309.

It is not a de Polignac number, because 90320840895 - 2¹⁰ = 90320839871 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 103816624 + ... + 103817493.

It is an arithmetic number, because the mean of its divisors is an integer number (9343535310).

Almost surely, 2^90320840895 is an apocalyptic number.

90320840895 is a deficient number, since it is larger than the sum of its proper divisors (59175724065).

90320840895 is a wasteful number, since it uses less digits than its factorization.

90320840895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207634154.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 90320840895 in words is "ninety billion, three hundred twenty million, eight hundred forty thousand, eight hundred ninety-five".