84723957789 has 8 divisors (see below), whose sum is σ = 116018392800. Its totient is φ = 54956080656.

The previous prime is 84723957727. The next prime is 84723957793. The reversal of 84723957789 is 98775932748.

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

It is not a de Polignac number, because 84723957789 - 2¹¹ = 84723955741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84723957089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381639339 + ... + 381639560.

It is an arithmetic number, because the mean of its divisors is an integer number (14502299100).

Almost surely, 2^84723957789 is an apocalyptic number.

It is an amenable number.

84723957789 is a deficient number, since it is larger than the sum of its proper divisors (31294435011).

84723957789 is a wasteful number, since it uses less digits than its factorization.

84723957789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763278939.

The product of its digits is 213373440, while the sum is 69.

The spelling of 84723957789 in words is "eighty-four billion, seven hundred twenty-three million, nine hundred fifty-seven thousand, seven hundred eighty-nine".