511081034373263 has 16 divisors (see below), whose sum is σ = 526137284090880. Its totient is φ = 496169349266976.

The previous prime is 511081034373163. The next prime is 511081034373269. The reversal of 511081034373263 is 362373430180115.

It is a cyclic number.

It is not a de Polignac number, because 511081034373263 - 2¹² = 511081034369167 is a prime.

It is a super-2 number, since 2×511081034373263² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511081034373269) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 94211633 + ... + 99488661.

It is an arithmetic number, because the mean of its divisors is an integer number (32883580255680).

Almost surely, 2^{511081034373263} is an apocalyptic number.

511081034373263 is a deficient number, since it is larger than the sum of its proper divisors (15056249717617).

511081034373263 is a wasteful number, since it uses less digits than its factorization.

511081034373263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5290726.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 511081034373263 in words is "five hundred eleven trillion, eighty-one billion, thirty-four million, three hundred seventy-three thousand, two hundred sixty-three".