517961263071 has 64 divisors (see below), whose sum is σ = 857880657920. Its totient is φ = 271271047680.

The previous prime is 517961263069. The next prime is 517961263093. The reversal of 517961263071 is 170362169715.

It is not a de Polignac number, because 517961263071 - 2¹ = 517961263069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 517961263071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517961263031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78750135 + ... + 78756711.

It is an arithmetic number, because the mean of its divisors is an integer number (13404385280).

Almost surely, 2^517961263071 is an apocalyptic number.

517961263071 is a deficient number, since it is larger than the sum of its proper divisors (339919394849).

517961263071 is a wasteful number, since it uses less digits than its factorization.

517961263071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004.

The product of its (nonzero) digits is 476280, while the sum is 48.

The spelling of 517961263071 in words is "five hundred seventeen billion, nine hundred sixty-one million, two hundred sixty-three thousand, seventy-one".