501530440234434 has 64 divisors (see below), whose sum is σ = 1094935883328000. Its totient is φ = 152218429489152.

The previous prime is 501530440234427. The next prime is 501530440234501. The reversal of 501530440234434 is 434432044035105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32330559 + ... + 45258434.

It is an arithmetic number, because the mean of its divisors is an integer number (17108373177000).

Almost surely, 2^{501530440234434} is an apocalyptic number.

501530440234434 is an abundant number, since it is smaller than the sum of its proper divisors (593405443093566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501530440234434 is a wasteful number, since it uses less digits than its factorization.

501530440234434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77590139.

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 501530440234434 its reverse (434432044035105), we get a palindrome (935962484269539).

The spelling of 501530440234434 in words is "five hundred one trillion, five hundred thirty billion, four hundred forty million, two hundred thirty-four thousand, four hundred thirty-four".