90994701289 has 4 divisors (see below), whose sum is σ = 91456603524. Its totient is φ = 90532799056.

The previous prime is 90994701269. The next prime is 90994701299. The reversal of 90994701289 is 98210749909.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52182549225 + 38812152064 = 228435^2 + 197008^2 .

It is a cyclic number.

It is not a de Polignac number, because 90994701289 - 2⁹ = 90994700777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90994701269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230950822 + ... + 230951215.

It is an arithmetic number, because the mean of its divisors is an integer number (22864150881).

Almost surely, 2^90994701289 is an apocalyptic number.

It is an amenable number.

90994701289 is a deficient number, since it is larger than the sum of its proper divisors (461902235).

90994701289 is a wasteful number, since it uses less digits than its factorization.

90994701289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461902234.

The product of its (nonzero) digits is 2939328, while the sum is 58.

The spelling of 90994701289 in words is "ninety billion, nine hundred ninety-four million, seven hundred one thousand, two hundred eighty-nine".