649671329222 has 8 divisors (see below), whose sum is σ = 974511211896. Its totient is φ = 324834258592.

The previous prime is 649671329173. The next prime is 649671329261. The reversal of 649671329222 is 222923176946.

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

It is a super-2 number, since 2×649671329222² (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 3 ways as a sum of consecutive naturals, for example, 25598 + ... + 1140174.

It is an arithmetic number, because the mean of its divisors is an integer number (121813901487).

Almost surely, 2^649671329222 is an apocalyptic number.

649671329222 is a deficient number, since it is larger than the sum of its proper divisors (324839882674).

649671329222 is a wasteful number, since it uses less digits than its factorization.

649671329222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406022.

The product of its digits is 3919104, while the sum is 53.

The spelling of 649671329222 in words is "six hundred forty-nine billion, six hundred seventy-one million, three hundred twenty-nine thousand, two hundred twenty-two".