90291175009 has 6 divisors (see below), whose sum is σ = 105032591394. Its totient is φ = 77392435680.

The previous prime is 90291174937. The next prime is 90291175063. The reversal of 90291175009 is 90057119209.

It can be written as a sum of positive squares in only one way, i.e., 80829333025 + 9461841984 = 284305^2 + 97272^2 .

It is not a de Polignac number, because 90291175009 - 2¹³ = 90291166817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90291175099) 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 5 ways as a sum of consecutive naturals, for example, 921338472 + ... + 921338569.

It is an arithmetic number, because the mean of its divisors is an integer number (17505431899).

Almost surely, 2^90291175009 is an apocalyptic number.

It is an amenable number.

90291175009 is a deficient number, since it is larger than the sum of its proper divisors (14741416385).

90291175009 is a wasteful number, since it uses less digits than its factorization.

90291175009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842677055 (or 1842677048 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 43.

The spelling of 90291175009 in words is "ninety billion, two hundred ninety-one million, one hundred seventy-five thousand, nine".