4549455648 has 36 divisors (see below), whose sum is σ = 12937515318. Its totient is φ = 1516485120.

The previous prime is 4549455619. The next prime is 4549455667. The reversal of 4549455648 is 8465549454.

It is a happy number.

4549455648 is a `hidden beast` number, since 4 + 5 + 49 + 4 + 556 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3193154064 + 1356301584 = 56508^2 + 36828^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4549455594 and 4549455603.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7898073 + ... + 7898648.

Almost surely, 2^4549455648 is an apocalyptic number.

4549455648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4549455648 is an abundant number, since it is smaller than the sum of its proper divisors (8388059670).

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

4549455648 is a wasteful number, since it uses less digits than its factorization.

4549455648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15796737 (or 15796726 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The square root of 4549455648 is about 67449.6526899880. The cubic root of 4549455648 is about 1656.9897115368.

The spelling of 4549455648 in words is "four billion, five hundred forty-nine million, four hundred fifty-five thousand, six hundred forty-eight".