619323012 has 216 divisors, whose sum is σ = 2072033600. Its totient is φ = 152254080.

The previous prime is 619322987. The next prime is 619323017. The reversal of 619323012 is 210323916.

619323012 is a `hidden beast` number, since 619 + 3 + 2 + 30 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (619323017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 578814 + ... + 579882.

Almost surely, 2^619323012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 619323012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036016800).

619323012 is an abundant number, since it is smaller than the sum of its proper divisors (1452710588).

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

619323012 is a wasteful number, since it uses less digits than its factorization.

619323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 619323012 is about 24886.2012368300. The cubic root of 619323012 is about 852.3914256453.

Adding to 619323012 its reverse (210323916), we get a palindrome (829646928).

The spelling of 619323012 in words is "six hundred nineteen million, three hundred twenty-three thousand, twelve".