511933949332 has 12 divisors (see below), whose sum is σ = 964798596916. Its totient is φ = 236277207360.

The previous prime is 511933949327. The next prime is 511933949389. The reversal of 511933949332 is 233949339115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 199189045636 + 312744903696 = 446306^2 + 559236^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 9844883641 = 511933949332 / (5 + 1 + 1 + 9 + 3 + 3 + 9 + 4 + 9 + 3 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 511933949332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4922441769 + ... + 4922441872.

Almost surely, 2^511933949332 is an apocalyptic number.

511933949332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

511933949332 is a deficient number, since it is larger than the sum of its proper divisors (452864647584).

511933949332 is a wasteful number, since it uses less digits than its factorization.

511933949332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9844883658 (or 9844883656 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 52.

The spelling of 511933949332 in words is "five hundred eleven billion, nine hundred thirty-three million, nine hundred forty-nine thousand, three hundred thirty-two".