649211087310 has 64 divisors (see below), whose sum is σ = 1584140751360. Its totient is φ = 170232036480.

The previous prime is 649211087303. The next prime is 649211087323. The reversal of 649211087310 is 13780112946.

It is a happy number.

It is a super-2 number, since 2×649211087310² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6027711 + ... + 6134469.

It is an arithmetic number, because the mean of its divisors is an integer number (24752199240).

Almost surely, 2^649211087310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649211087310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (792070375680).

649211087310 is an abundant number, since it is smaller than the sum of its proper divisors (934929664050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649211087310 is a wasteful number, since it uses less digits than its factorization.

649211087310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110153.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 649211087310 in words is "six hundred forty-nine billion, two hundred eleven million, eighty-seven thousand, three hundred ten".