84410678765 has 16 divisors (see below), whose sum is σ = 122572818432. Its totient is φ = 54476807424.

The previous prime is 84410678761. The next prime is 84410678809. The reversal of 84410678765 is 56787601448.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 84410678765 - 2² = 84410678761 is a prime.

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 84410678765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84410678761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70932749 + ... + 70933938.

It is an arithmetic number, because the mean of its divisors is an integer number (7660801152).

Almost surely, 2^84410678765 is an apocalyptic number.

84410678765 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84410678765 is a deficient number, since it is larger than the sum of its proper divisors (38162139667).

84410678765 is a wasteful number, since it uses less digits than its factorization.

84410678765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141866716.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 84410678765 in words is "eighty-four billion, four hundred ten million, six hundred seventy-eight thousand, seven hundred sixty-five".