89941928705 has 4 divisors (see below), whose sum is σ = 107930314452. Its totient is φ = 71953542960.

The previous prime is 89941928689. The next prime is 89941928731. The reversal of 89941928705 is 50782914998.

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 71280456256 + 18661472449 = 266984^2 + 136607^2 .

It is not a de Polignac number, because 89941928705 - 2⁴ = 89941928689 is a prime.

It is a super-3 number, since 3×89941928705³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8994192866 + ... + 8994192875.

It is an arithmetic number, because the mean of its divisors is an integer number (26982578613).

Almost surely, 2^89941928705 is an apocalyptic number.

It is an amenable number.

89941928705 is a deficient number, since it is larger than the sum of its proper divisors (17988385747).

89941928705 is a wasteful number, since it uses less digits than its factorization.

89941928705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17988385746.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 89941928705 in words is "eighty-nine billion, nine hundred forty-one million, nine hundred twenty-eight thousand, seven hundred five".