64892993159 has 4 divisors (see below), whose sum is σ = 64902253416. Its totient is φ = 64883732904.

The previous prime is 64892993119. The next prime is 64892993161. The reversal of 64892993159 is 95139929846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64892993159 is a prime.

It is a super-2 number, since 2×64892993159² (a number of 22 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 = 64892993095 and 64892993104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64892993119) 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 3 ways as a sum of consecutive naturals, for example, 4619609 + ... + 4633634.

It is an arithmetic number, because the mean of its divisors is an integer number (16225563354).

Almost surely, 2^64892993159 is an apocalyptic number.

64892993159 is a deficient number, since it is larger than the sum of its proper divisors (9260257).

64892993159 is an equidigital number, since it uses as much as digits as its factorization.

64892993159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260256.

The product of its digits is 37791360, while the sum is 65.

The spelling of 64892993159 in words is "sixty-four billion, eight hundred ninety-two million, nine hundred ninety-three thousand, one hundred fifty-nine".