511413791 has 4 divisors (see below), whose sum is σ = 584472912. Its totient is φ = 438354672.

The previous prime is 511413751. The next prime is 511413817. The reversal of 511413791 is 197314115.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 511413791 - 2¹⁸ = 511151647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511413701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36529550 + ... + 36529563.

It is an arithmetic number, because the mean of its divisors is an integer number (146118228).

Almost surely, 2^511413791 is an apocalyptic number.

511413791 is a deficient number, since it is larger than the sum of its proper divisors (73059121).

511413791 is an equidigital number, since it uses as much as digits as its factorization.

511413791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73059120.

The product of its digits is 3780, while the sum is 32.

The square root of 511413791 is about 22614.4597768773. The cubic root of 511413791 is about 799.6945662151.

The spelling of 511413791 in words is "five hundred eleven million, four hundred thirteen thousand, seven hundred ninety-one".