511782440793 has 16 divisors (see below), whose sum is σ = 735270305280. Its totient is φ = 314770235904.

The previous prime is 511782440773. The next prime is 511782440809. The reversal of 511782440793 is 397044287115.

It is not a de Polignac number, because 511782440793 - 2³⁸ = 236904533849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (511782440723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3528088 + ... + 3670281.

It is an arithmetic number, because the mean of its divisors is an integer number (45954394080).

Almost surely, 2^511782440793 is an apocalyptic number.

It is an amenable number.

511782440793 is a deficient number, since it is larger than the sum of its proper divisors (223487864487).

511782440793 is a wasteful number, since it uses less digits than its factorization.

511782440793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200208.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 511782440793 in words is "five hundred eleven billion, seven hundred eighty-two million, four hundred forty thousand, seven hundred ninety-three".