90705099085 has 8 divisors (see below), whose sum is σ = 108847787256. Its totient is φ = 72562967040.

The previous prime is 90705099061. The next prime is 90705099101. The reversal of 90705099085 is 58099050709.

It can be written as a sum of positive squares in 4 ways, for example, as 23904561321 + 66800537764 = 154611^2 + 258458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90705099085 - 2¹¹ = 90705097037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436057 + ... + 609553.

It is an arithmetic number, because the mean of its divisors is an integer number (13605973407).

Almost surely, 2^90705099085 is an apocalyptic number.

It is an amenable number.

90705099085 is a deficient number, since it is larger than the sum of its proper divisors (18142688171).

90705099085 is a wasteful number, since it uses less digits than its factorization.

90705099085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278063.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The spelling of 90705099085 in words is "ninety billion, seven hundred five million, ninety-nine thousand, eighty-five".