511943112004 has 45 divisors (see below), whose sum is σ = 946627534671. Its totient is φ = 242254667160.

The previous prime is 511943112001. The next prime is 511943112049. The reversal of 511943112004 is 400211349115.

The square root of 511943112004 is 715502.

It is a perfect power (a square), and thus also a powerful number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511943112001) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 516591949 + ... + 516592939.

Almost surely, 2^511943112004 is an apocalyptic number.

511943112004 is the 715502-nd square number.

It is an amenable number.

511943112004 is a deficient number, since it is larger than the sum of its proper divisors (434684422667).

511943112004 is an frugal number, since it uses more digits than its factorization.

511943112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 511943112004 in words is "five hundred eleven billion, nine hundred forty-three million, one hundred twelve thousand, four".