511938144245 has 32 divisors (see below), whose sum is σ = 746942705280. Its totient is φ = 331974512640.

The previous prime is 511938144233. The next prime is 511938144259. The reversal of 511938144245 is 542441839115.

It is not a de Polignac number, because 511938144245 - 2³⁴ = 494758275061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 511938144245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14390852 + ... + 14426381.

It is an arithmetic number, because the mean of its divisors is an integer number (23341959540).

Almost surely, 2^511938144245 is an apocalyptic number.

511938144245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

511938144245 is a deficient number, since it is larger than the sum of its proper divisors (235004561035).

511938144245 is a wasteful number, since it uses less digits than its factorization.

511938144245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28817285.

The product of its digits is 691200, while the sum is 47.

The spelling of 511938144245 in words is "five hundred eleven billion, nine hundred thirty-eight million, one hundred forty-four thousand, two hundred forty-five".