523404186062081 has 8 divisors (see below), whose sum is σ = 537251756645928. Its totient is φ = 509726524320000.

The previous prime is 523404186062029. The next prime is 523404186062111. The reversal of 523404186062081 is 180260681404325.

It can be written as a sum of positive squares in 4 ways, for example, as 16200142003600 + 507204044058481 = 4024940^2 + 22521191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523404186062081 - 2²⁶ = 523404118953217 is a prime.

It is a super-2 number, since 2×523404186062081² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523404186052081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42477204200 + ... + 42477216521.

It is an arithmetic number, because the mean of its divisors is an integer number (67156469580741).

Almost surely, 2^{523404186062081} is an apocalyptic number.

It is an amenable number.

523404186062081 is a deficient number, since it is larger than the sum of its proper divisors (13847570583847).

523404186062081 is a wasteful number, since it uses less digits than its factorization.

523404186062081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84954420883.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 523404186062081 in words is "five hundred twenty-three trillion, four hundred four billion, one hundred eighty-six million, sixty-two thousand, eighty-one".