511012999999 has 4 divisors (see below), whose sum is σ = 528634137960. Its totient is φ = 493391862040.

The previous prime is 511012999921. The next prime is 511013000011. The reversal of 511012999999 is 999999210115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 511012999999 - 2¹¹ = 511012997951 is a prime.

It is a super-2 number, since 2×511012999999² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

511012999999 is a modest number, since divided by 999999 gives 511012 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 511012999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511012991999) 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, 8810568937 + ... + 8810568994.

It is an arithmetic number, because the mean of its divisors is an integer number (132158534490).

Almost surely, 2^511012999999 is an apocalyptic number.

511012999999 is a deficient number, since it is larger than the sum of its proper divisors (17621137961).

511012999999 is a wasteful number, since it uses less digits than its factorization.

511012999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17621137960.

The product of its (nonzero) digits is 5314410, while the sum is 64.

The spelling of 511012999999 in words is "five hundred eleven billion, twelve million, nine hundred ninety-nine thousand, nine hundred ninety-nine".