84035378645 has 8 divisors (see below), whose sum is σ = 105226909056. Its totient is φ = 64305333136.

The previous prime is 84035378641. The next prime is 84035378653. The reversal of 84035378645 is 54687353048.

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 84035378645 - 2² = 84035378641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84035378641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365371097 + ... + 365371326.

It is an arithmetic number, because the mean of its divisors is an integer number (13153363632).

Almost surely, 2^84035378645 is an apocalyptic number.

It is an amenable number.

84035378645 is a deficient number, since it is larger than the sum of its proper divisors (21191530411).

84035378645 is a wasteful number, since it uses less digits than its factorization.

84035378645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730742451.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 84035378645 in words is "eighty-four billion, thirty-five million, three hundred seventy-eight thousand, six hundred forty-five".