90358790705 has 8 divisors (see below), whose sum is σ = 108432565800. Its totient is φ = 72285687936.

The previous prime is 90358790671. The next prime is 90358790741. The reversal of 90358790705 is 50709785309.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11082193984 + 79276596721 = 105272^2 + 281561^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 90358790705 - 2¹⁰ = 90358789681 is a prime.

It is a super-2 number, since 2×90358790705² (a number of 23 digits) contains 22 as substring.

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, 201461 + ... + 470429.

It is an arithmetic number, because the mean of its divisors is an integer number (13554070725).

Almost surely, 2^90358790705 is an apocalyptic number.

It is an amenable number.

90358790705 is a deficient number, since it is larger than the sum of its proper divisors (18073775095).

90358790705 is a wasteful number, since it uses less digits than its factorization.

90358790705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336163.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 90358790705 in words is "ninety billion, three hundred fifty-eight million, seven hundred ninety thousand, seven hundred five".