511100000004 has 24 divisors (see below), whose sum is σ = 1300981818528. Its totient is φ = 154878787840.

The previous prime is 511099999997. The next prime is 511100000009. The reversal of 511100000004 is 400000001115.

It is a happy number.

It is a super-2 number, since 2×511100000004² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (511100000009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1935984717 + ... + 1935984980.

It is an arithmetic number, because the mean of its divisors is an integer number (54207575772).

Almost surely, 2^511100000004 is an apocalyptic number.

It is an amenable number.

511100000004 is an abundant number, since it is smaller than the sum of its proper divisors (789881818524).

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

511100000004 is a wasteful number, since it uses less digits than its factorization.

511100000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871969715 (or 3871969713 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

Adding to 511100000004 its reverse (400000001115), we get a palindrome (911100001119).

The spelling of 511100000004 in words is "five hundred eleven billion, one hundred million, four", and thus it is an aban number.