4909923648 has 224 divisors, whose sum is σ = 17066361600. Its totient is φ = 1354364928.

The previous prime is 4909923637. The next prime is 4909923661. The reversal of 4909923648 is 8463299094.

4909923648 is a `hidden beast` number, since 490 + 9 + 92 + 3 + 64 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 4909923594 and 4909923603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343786 + ... + 357782.

Almost surely, 2^4909923648 is an apocalyptic number.

4909923648 is a gapful number since it is divisible by the number (48) 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 4909923648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8533180800).

4909923648 is an abundant number, since it is smaller than the sum of its proper divisors (12156437952).

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

4909923648 is a wasteful number, since it uses less digits than its factorization.

4909923648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14054 (or 14038 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 4909923648 is about 70070.8473475239. The cubic root of 4909923648 is about 1699.6450986937.

The spelling of 4909923648 in words is "four billion, nine hundred nine million, nine hundred twenty-three thousand, six hundred forty-eight".