619473648 has 20 divisors (see below), whose sum is σ = 1600307048. Its totient is φ = 206491200.

The previous prime is 619473607. The next prime is 619473649. The reversal of 619473648 is 846374916.

619473648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 12905701 = 619473648 / (6 + 1 + 9 + 4 + 7 + 3 + 6 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 619473597 and 619473606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619473649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6452803 + ... + 6452898.

Almost surely, 2^619473648 is an apocalyptic number.

It is an amenable number.

619473648 is an abundant number, since it is smaller than the sum of its proper divisors (980833400).

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

619473648 is a wasteful number, since it uses less digits than its factorization.

619473648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905712 (or 12905706 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 619473648 is about 24889.2275492832. The cubic root of 619473648 is about 852.4605282103.

The spelling of 619473648 in words is "six hundred nineteen million, four hundred seventy-three thousand, six hundred forty-eight".