511128777513 has 16 divisors (see below), whose sum is σ = 687573656000. Its totient is φ = 337729144896.

The previous prime is 511128777503. The next prime is 511128777527. The reversal of 511128777513 is 315777821115.

It is not a de Polignac number, because 511128777513 - 2²⁴ = 511112000297 is a prime.

It is a super-2 number, since 2×511128777513² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (511128777503) 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, 1179763 + ... + 1553736.

It is an arithmetic number, because the mean of its divisors is an integer number (42973353500).

Almost surely, 2^511128777513 is an apocalyptic number.

It is an amenable number.

511128777513 is a deficient number, since it is larger than the sum of its proper divisors (176444878487).

511128777513 is a wasteful number, since it uses less digits than its factorization.

511128777513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734056.

The product of its digits is 411600, while the sum is 48.

The spelling of 511128777513 in words is "five hundred eleven billion, one hundred twenty-eight million, seven hundred seventy-seven thousand, five hundred thirteen".