84455180769 has 4 divisors (see below), whose sum is σ = 112606907696. Its totient is φ = 56303453844.

The previous prime is 84455180767. The next prime is 84455180813. The reversal of 84455180769 is 96708155448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 84455180769 - 2¹ = 84455180767 is a prime.

It is a super-2 number, since 2×84455180769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84455180767) 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, 14075863459 + ... + 14075863464.

It is an arithmetic number, because the mean of its divisors is an integer number (28151726924).

Almost surely, 2^84455180769 is an apocalyptic number.

It is an amenable number.

84455180769 is a deficient number, since it is larger than the sum of its proper divisors (28151726927).

84455180769 is a wasteful number, since it uses less digits than its factorization.

84455180769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28151726926.

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 84455180769 in words is "eighty-four billion, four hundred fifty-five million, one hundred eighty thousand, seven hundred sixty-nine".