84378282769 has 8 divisors (see below), whose sum is σ = 96893722080. Its totient is φ = 72670291200.

The previous prime is 84378282761. The next prime is 84378282803. The reversal of 84378282769 is 96728287348.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 84378282769 - 2³ = 84378282761 is a prime.

It is a super-3 number, since 3×84378282769³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84378282769.

It is not an unprimeable number, because it can be changed into a prime (84378282761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201861712 + ... + 201862129.

It is an arithmetic number, because the mean of its divisors is an integer number (12111715260).

Almost surely, 2^84378282769 is an apocalyptic number.

It is an amenable number.

84378282769 is a deficient number, since it is larger than the sum of its proper divisors (12515439311).

84378282769 is a wasteful number, since it uses less digits than its factorization.

84378282769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403723871.

The product of its digits is 65028096, while the sum is 64.

The spelling of 84378282769 in words is "eighty-four billion, three hundred seventy-eight million, two hundred eighty-two thousand, seven hundred sixty-nine".