86784965451 has 6 divisors (see below), whose sum is σ = 125356061220. Its totient is φ = 57856643628.

The previous prime is 86784965413. The next prime is 86784965453. The reversal of 86784965451 is 15456948768.

86784965451 is a `hidden beast` number, since 8 + 6 + 7 + 84 + 9 + 6 + 545 + 1 = 666.

It is not a de Polignac number, because 86784965451 - 2¹¹ = 86784963403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86784965453) 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 5 ways as a sum of consecutive naturals, for example, 4821386961 + ... + 4821386978.

It is an arithmetic number, because the mean of its divisors is an integer number (20892676870).

Almost surely, 2^86784965451 is an apocalyptic number.

86784965451 is a deficient number, since it is larger than the sum of its proper divisors (38571095769).

86784965451 is a wasteful number, since it uses less digits than its factorization.

86784965451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642773945 (or 9642773942 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 86784965451 in words is "eighty-six billion, seven hundred eighty-four million, nine hundred sixty-five thousand, four hundred fifty-one".