649671798310 has 16 divisors (see below), whose sum is σ = 1173959472096. Its totient is φ = 258857555968.

The previous prime is 649671798301. The next prime is 649671798311. The reversal of 649671798310 is 13897176946.

It is a super-2 number, since 2×649671798310² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649671798311) 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, 126392722 + ... + 126397861.

It is an arithmetic number, because the mean of its divisors is an integer number (73372467006).

Almost surely, 2^649671798310 is an apocalyptic number.

649671798310 is a deficient number, since it is larger than the sum of its proper divisors (524287673786).

649671798310 is a wasteful number, since it uses less digits than its factorization.

649671798310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252790847.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 649671798310 in words is "six hundred forty-nine billion, six hundred seventy-one million, seven hundred ninety-eight thousand, three hundred ten".