649662930000 has 1400 divisors, whose sum is σ = 2794452988800. Its totient is φ = 143047296000.

The previous prime is 649662929921. The next prime is 649662930097. The reversal of 649662930000 is 39266946.

It is a tau number, because it is divible by the number of its divisors (1400).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 279 ways as a sum of consecutive naturals, for example, 1479869781 + ... + 1479870219.

Almost surely, 2^649662930000 is an apocalyptic number.

649662930000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649662930000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397226494400).

649662930000 is an abundant number, since it is smaller than the sum of its proper divisors (2144790058800).

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

649662930000 is an equidigital number, since it uses as much as digits as its factorization.

649662930000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 649662930000 in words is "six hundred forty-nine billion, six hundred sixty-two million, nine hundred thirty thousand".