523640442035 has 8 divisors (see below), whose sum is σ = 661440558480. Its totient is φ = 396864334944.

The previous prime is 523640442019. The next prime is 523640442037. The reversal of 523640442035 is 530244046325.

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

It is not a de Polignac number, because 523640442035 - 2⁴ = 523640442019 is a prime.

It is a super-2 number, since 2×523640442035² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 523640442035.

It is not an unprimeable number, because it can be changed into a prime (523640442037) 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 7 ways as a sum of consecutive naturals, for example, 2756002232 + ... + 2756002421.

It is an arithmetic number, because the mean of its divisors is an integer number (82680069810).

Almost surely, 2^523640442035 is an apocalyptic number.

523640442035 is a deficient number, since it is larger than the sum of its proper divisors (137800116445).

523640442035 is a wasteful number, since it uses less digits than its factorization.

523640442035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512004677.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 523640442035 in words is "five hundred twenty-three billion, six hundred forty million, four hundred forty-two thousand, thirty-five".