84250128359 has 4 divisors (see below), whose sum is σ = 85316585760. Its totient is φ = 83183670960.

The previous prime is 84250128349. The next prime is 84250128371. The reversal of 84250128359 is 95382105248.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84250128359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84250128349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533228582 + ... + 533228739.

It is an arithmetic number, because the mean of its divisors is an integer number (21329146440).

Almost surely, 2^84250128359 is an apocalyptic number.

84250128359 is a deficient number, since it is larger than the sum of its proper divisors (1066457401).

84250128359 is a wasteful number, since it uses less digits than its factorization.

84250128359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066457400.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 84250128359 in words is "eighty-four billion, two hundred fifty million, one hundred twenty-eight thousand, three hundred fifty-nine".