649156712 has 16 divisors (see below), whose sum is σ = 1250065860. Its totient is φ = 315805824.

The previous prime is 649156699. The next prime is 649156751. The reversal of 649156712 is 217651946.

It can be written as a sum of positive squares in 2 ways, for example, as 644855236 + 4301476 = 25394^2 + 2074^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 649156712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096253 + ... + 1096844.

Almost surely, 2^649156712 is an apocalyptic number.

It is an amenable number.

649156712 is a deficient number, since it is larger than the sum of its proper divisors (600909148).

649156712 is a wasteful number, since it uses less digits than its factorization.

649156712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193140 (or 2193136 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 649156712 is about 25478.5539621070. The cubic root of 649156712 is about 865.8643334566.

The spelling of 649156712 in words is "six hundred forty-nine million, one hundred fifty-six thousand, seven hundred twelve".