90827195820 has 24 divisors (see below), whose sum is σ = 254316148464. Its totient is φ = 24220585536.

The previous prime is 90827195783. The next prime is 90827195827. The reversal of 90827195820 is 2859172809.

It is not an unprimeable number, because it can be changed into a prime (90827195827) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 756893239 + ... + 756893358.

It is an arithmetic number, because the mean of its divisors is an integer number (10596506186).

Almost surely, 2^90827195820 is an apocalyptic number.

It is an amenable number.

90827195820 is an abundant number, since it is smaller than the sum of its proper divisors (163488952644).

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

90827195820 is a wasteful number, since it uses less digits than its factorization.

90827195820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513786609 (or 1513786607 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 90827195820 in words is "ninety billion, eight hundred twenty-seven million, one hundred ninety-five thousand, eight hundred twenty".