501463068721 has 4 divisors (see below), whose sum is σ = 502137986112. Its totient is φ = 500788151332.

The previous prime is 501463068679. The next prime is 501463068739. The reversal of 501463068721 is 127860364105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 127860364105 = 5 ⋅25572072821.

It is a cyclic number.

It is not a de Polignac number, because 501463068721 - 2⁷ = 501463068593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501463066721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337457581 + ... + 337459066.

It is an arithmetic number, because the mean of its divisors is an integer number (125534496528).

Almost surely, 2^501463068721 is an apocalyptic number.

It is an amenable number.

501463068721 is a deficient number, since it is larger than the sum of its proper divisors (674917391).

501463068721 is an equidigital number, since it uses as much as digits as its factorization.

501463068721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674917390.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 501463068721 in words is "five hundred one billion, four hundred sixty-three million, sixty-eight thousand, seven hundred twenty-one".