646841086502 has 8 divisors (see below), whose sum is σ = 1044897139776. Its totient is φ = 298542039912.

The previous prime is 646841086501. The next prime is 646841086511. The reversal of 646841086502 is 205680148646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646841086501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12439251638 + ... + 12439251689.

It is an arithmetic number, because the mean of its divisors is an integer number (130612142472).

Almost surely, 2^646841086502 is an apocalyptic number.

646841086502 is a deficient number, since it is larger than the sum of its proper divisors (398056053274).

646841086502 is a wasteful number, since it uses less digits than its factorization.

646841086502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24878503342.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 646841086502 in words is "six hundred forty-six billion, eight hundred forty-one million, eighty-six thousand, five hundred two".