501270000020 has 48 divisors (see below), whose sum is σ = 1108451554560. Its totient is φ = 189889628544.

The previous prime is 501269999983. The next prime is 501270000029. The reversal of 501270000020 is 20000072105.

It is a super-2 number, since 2×501270000020² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501270000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886922 + ... + 1337598.

It is an arithmetic number, because the mean of its divisors is an integer number (23092740720).

Almost surely, 2^501270000020 is an apocalyptic number.

It is an amenable number.

501270000020 is an abundant number, since it is smaller than the sum of its proper divisors (607181554540).

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

501270000020 is a wasteful number, since it uses less digits than its factorization.

501270000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453632 (or 453630 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

Adding to 501270000020 its reverse (20000072105), we get a palindrome (521270072125).

The spelling of 501270000020 in words is "five hundred one billion, two hundred seventy million, twenty", and thus it is an aban number.