519900012 has 48 divisors (see below), whose sum is σ = 1350259680. Its totient is φ = 172995264.

The previous prime is 519899993. The next prime is 519900013. The reversal of 519900012 is 210009915.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (519900013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62278 + ... + 70130.

It is an arithmetic number, because the mean of its divisors is an integer number (28130410).

Almost surely, 2^519900012 is an apocalyptic number.

It is an amenable number.

519900012 is an abundant number, since it is smaller than the sum of its proper divisors (830359668).

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

519900012 is a wasteful number, since it uses less digits than its factorization.

519900012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479 (or 8471 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 519900012 is about 22801.3160146514. The cubic root of 519900012 is about 804.0936068335.

Adding to 519900012 its reverse (210009915), we get a palindrome (729909927).

The spelling of 519900012 in words is "five hundred nineteen million, nine hundred thousand, twelve".