86428650247 has 4 divisors (see below), whose sum is σ = 86429245336. Its totient is φ = 86428055160.

The previous prime is 86428650239. The next prime is 86428650263. The reversal of 86428650247 is 74205682468.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 86428650247 - 2³ = 86428650239 is a prime.

It is a super-2 number, since 2×86428650247² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86428650194 and 86428650203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86428650277) 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 3 ways as a sum of consecutive naturals, for example, 79972 + ... + 423382.

It is an arithmetic number, because the mean of its divisors is an integer number (21607311334).

Almost surely, 2^86428650247 is an apocalyptic number.

86428650247 is a deficient number, since it is larger than the sum of its proper divisors (595089).

86428650247 is a wasteful number, since it uses less digits than its factorization.

86428650247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595088.

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 86428650247 in words is "eighty-six billion, four hundred twenty-eight million, six hundred fifty thousand, two hundred forty-seven".