646302476704742 has 16 divisors (see below), whose sum is σ = 1138938630277392. Its totient is φ = 271175864351520.

The previous prime is 646302476704733. The next prime is 646302476704747. The reversal of 646302476704742 is 247407674203646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646302476704747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129899434513 + ... + 1129899435084.

It is an arithmetic number, because the mean of its divisors is an integer number (71183664392337).

Almost surely, 2^{646302476704742} is an apocalyptic number.

646302476704742 is a deficient number, since it is larger than the sum of its proper divisors (492636153572650).

646302476704742 is a wasteful number, since it uses less digits than its factorization.

646302476704742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259798869623.

The product of its (nonzero) digits is 227598336, while the sum is 62.

The spelling of 646302476704742 in words is "six hundred forty-six trillion, three hundred two billion, four hundred seventy-six million, seven hundred four thousand, seven hundred forty-two".