511100000005 has 24 divisors (see below), whose sum is σ = 720809105688. Its totient is φ = 346855477248.

The previous prime is 511099999997. The next prime is 511100000009. The reversal of 511100000005 is 500000001115.

It can be written as a sum of positive squares in 4 ways, for example, as 2682514849 + 508417485156 = 51793^2 + 713034^2 .

It is not a de Polignac number, because 511100000005 - 2³ = 511099999997 is a prime.

It is a super-2 number, since 2×511100000005² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 10729444 + ... + 10776973.

It is an arithmetic number, because the mean of its divisors is an integer number (30033712737).

Almost surely, 2^511100000005 is an apocalyptic number.

It is an amenable number.

511100000005 is a deficient number, since it is larger than the sum of its proper divisors (209709105683).

511100000005 is a wasteful number, since it uses less digits than its factorization.

511100000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21506533 (or 21506526 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 13.

The spelling of 511100000005 in words is "five hundred eleven billion, one hundred million, five", and thus it is an aban number.