86550470919 has 64 divisors (see below), whose sum is σ = 148354790400. Its totient is φ = 49351420800.

The previous prime is 86550470911. The next prime is 86550470921. The reversal of 86550470919 is 91907405568.

86550470919 is a `hidden beast` number, since 8 + 6 + 550 + 4 + 70 + 9 + 19 = 666.

It is not a de Polignac number, because 86550470919 - 2³ = 86550470911 is a prime.

It is a super-2 number, since 2×86550470919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86550470911) 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 63 ways as a sum of consecutive naturals, for example, 312837 + ... + 520545.

It is an arithmetic number, because the mean of its divisors is an integer number (2318043600).

Almost surely, 2^86550470919 is an apocalyptic number.

86550470919 is a deficient number, since it is larger than the sum of its proper divisors (61804319481).

86550470919 is a wasteful number, since it uses less digits than its factorization.

86550470919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207813 (or 207807 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 86550470919 in words is "eighty-six billion, five hundred fifty million, four hundred seventy thousand, nine hundred nineteen".