649191152 has 10 divisors (see below), whose sum is σ = 1257807888. Its totient is φ = 324595568.

The previous prime is 649191143. The next prime is 649191157. The reversal of 649191152 is 251191946.

It is a super-3 number, since 3×649191152³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649191157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20287208 + ... + 20287239.

Almost surely, 2^649191152 is an apocalyptic number.

It is an amenable number.

649191152 is a deficient number, since it is larger than the sum of its proper divisors (608616736).

649191152 is a wasteful number, since it uses less digits than its factorization.

649191152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40574455 (or 40574449 counting only the distinct ones).

The product of its digits is 19440, while the sum is 38.

The square root of 649191152 is about 25479.2298156754. The cubic root of 649191152 is about 865.8796455477.

The spelling of 649191152 in words is "six hundred forty-nine million, one hundred ninety-one thousand, one hundred fifty-two".