524391116781 has 16 divisors (see below), whose sum is σ = 799164230144. Its totient is φ = 299617547184.

The previous prime is 524391116731. The next prime is 524391116783. The reversal of 524391116781 is 187611193425.

It is not a de Polignac number, because 524391116781 - 2⁹ = 524391116269 is a prime.

It is a super-2 number, since 2×524391116781² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 524391116781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524391116783) 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, 1251115 + ... + 1616808.

It is an arithmetic number, because the mean of its divisors is an integer number (49947764384).

Almost surely, 2^524391116781 is an apocalyptic number.

It is an amenable number.

524391116781 is a deficient number, since it is larger than the sum of its proper divisors (274773113363).

524391116781 is a wasteful number, since it uses less digits than its factorization.

524391116781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876640.

The product of its digits is 362880, while the sum is 48.

The spelling of 524391116781 in words is "five hundred twenty-four billion, three hundred ninety-one million, one hundred sixteen thousand, seven hundred eighty-one".