84864915465 has 32 divisors (see below), whose sum is σ = 148763661696. Its totient is φ = 40970012160.

The previous prime is 84864915461. The next prime is 84864915469. The reversal of 84864915465 is 56451946848.

It is an interprime number because it is at equal distance from previous prime (84864915461) and next prime (84864915469).

It is not a de Polignac number, because 84864915465 - 2² = 84864915461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84864915399 and 84864915408.

It is not an unprimeable number, because it can be changed into a prime (84864915461) 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 31 ways as a sum of consecutive naturals, for example, 1065274 + ... + 1142163.

It is an arithmetic number, because the mean of its divisors is an integer number (4648864428).

Almost surely, 2^84864915465 is an apocalyptic number.

It is an amenable number.

84864915465 is a deficient number, since it is larger than the sum of its proper divisors (63898746231).

84864915465 is a wasteful number, since it uses less digits than its factorization.

84864915465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207689.

The product of its digits is 33177600, while the sum is 60.

The spelling of 84864915465 in words is "eighty-four billion, eight hundred sixty-four million, nine hundred fifteen thousand, four hundred sixty-five".