86426004289 has 3 divisors (see below), whose sum is σ = 86426298273. Its totient is φ = 86425710306.

The previous prime is 86426004277. The next prime is 86426004341. The reversal of 86426004289 is 98240062468.

The square root of 86426004289 is 293983.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 86426004289 - 2⁹ = 86426003777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86426014289) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 146992 + ... + 440974.

It is an arithmetic number, because the mean of its divisors is an integer number (28808766091).

Almost surely, 2^86426004289 is an apocalyptic number.

86426004289 is the 293983-rd square number.

86426004289 is the 146992-nd centered octagonal number.

It is an amenable number.

86426004289 is a deficient number, since it is larger than the sum of its proper divisors (293984).

86426004289 is an frugal number, since it uses more digits than its factorization.

86426004289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587966 (or 293983 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

Multiplying 86426004289 by its sum of digits (49), we get a square (4234874210161 = 2057881²).

The spelling of 86426004289 in words is "eighty-six billion, four hundred twenty-six million, four thousand, two hundred eighty-nine".