64286351857 has 24 divisors (see below), whose sum is σ = 83505178176. Its totient is φ = 48186853344.

The previous prime is 64286351851. The next prime is 64286351867. The reversal of 64286351857 is 75815368246.

It is a happy number.

It is not a de Polignac number, because 64286351857 - 2³ = 64286351849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64286351798 and 64286351807.

It is not an unprimeable number, because it can be changed into a prime (64286351851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 945603 + ... + 1011304.

It is an arithmetic number, because the mean of its divisors is an integer number (3479382424).

Almost surely, 2^64286351857 is an apocalyptic number.

It is an amenable number.

64286351857 is a deficient number, since it is larger than the sum of its proper divisors (19218826319).

64286351857 is a wasteful number, since it uses less digits than its factorization.

64286351857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956965 (or 1956946 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 55.

The spelling of 64286351857 in words is "sixty-four billion, two hundred eighty-six million, three hundred fifty-one thousand, eight hundred fifty-seven".