649464373152 has 216 divisors, whose sum is σ = 2242227195936. Its totient is φ = 174645725184.

The previous prime is 649464373139. The next prime is 649464373163. The reversal of 649464373152 is 251373464946.

649464373152 is a `hidden beast` number, since 64 + 9 + 4 + 64 + 373 + 152 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25263 + ... + 1139985.

Almost surely, 2^649464373152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649464373152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121113597968).

649464373152 is an abundant number, since it is smaller than the sum of its proper divisors (1592762822784).

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

649464373152 is a wasteful number, since it uses less digits than its factorization.

649464373152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114780 (or 1114752 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 649464373152 in words is "six hundred forty-nine billion, four hundred sixty-four million, three hundred seventy-three thousand, one hundred fifty-two".