12649029120 has 640 divisors, whose sum is σ = 55326458880. Its totient is φ = 2667479040.

The previous prime is 12649029119. The next prime is 12649029139. The reversal of 12649029120 is 2192094621.

12649029120 is a `hidden beast` number, since 1 + 2 + 649 + 0 + 2 + 9 + 1 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6288915 + ... + 6290925.

It is an arithmetic number, because the mean of its divisors is an integer number (86447592).

Almost surely, 2^12649029120 is an apocalyptic number.

12649029120 is a gapful number since it is divisible by the number (10) 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 12649029120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27663229440).

12649029120 is an abundant number, since it is smaller than the sum of its proper divisors (42677429760).

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

12649029120 is a wasteful number, since it uses less digits than its factorization.

12649029120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 12649029120 in words is "twelve billion, six hundred forty-nine million, twenty-nine thousand, one hundred twenty".