512877778215 has 64 divisors (see below), whose sum is σ = 904502356992. Its totient is φ = 246088627200.

The previous prime is 512877778151. The next prime is 512877778243.

512877778215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 512877778215 - 2⁶ = 512877778151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27539587 + ... + 27558203.

It is an arithmetic number, because the mean of its divisors is an integer number (14132849328).

Almost surely, 2^512877778215 is an apocalyptic number.

512877778215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

512877778215 is a deficient number, since it is larger than the sum of its proper divisors (391624578777).

512877778215 is a wasteful number, since it uses less digits than its factorization.

512877778215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20360.

The product of its digits is 15366400, while the sum is 60.

The spelling of 512877778215 in words is "five hundred twelve billion, eight hundred seventy-seven million, seven hundred seventy-eight thousand, two hundred fifteen".