501151020647 has 4 divisors (see below), whose sum is σ = 501157161120. Its totient is φ = 501144880176.

The previous prime is 501151020641. The next prime is 501151020677. The reversal of 501151020647 is 746020151105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746020151105 = 5 ⋅149204030221.

It is a cyclic number.

It is not a de Polignac number, because 501151020647 - 2¹⁶ = 501150955111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501151020641) 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, 2946143 + ... + 3111600.

It is an arithmetic number, because the mean of its divisors is an integer number (125289290280).

Almost surely, 2^501151020647 is an apocalyptic number.

501151020647 is a deficient number, since it is larger than the sum of its proper divisors (6140473).

501151020647 is an equidigital number, since it uses as much as digits as its factorization.

501151020647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140472.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 501151020647 in words is "five hundred one billion, one hundred fifty-one million, twenty thousand, six hundred forty-seven".