501003542545044 has 72 divisors (see below), whose sum is σ = 1483491009113568. Its totient is φ = 130130790269760.

The previous prime is 501003542545043. The next prime is 501003542545139. The reversal of 501003542545044 is 440545245300105.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 501003542544987 and 501003542545005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501003542545043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38729395399 + ... + 38729408334.

It is an arithmetic number, because the mean of its divisors is an integer number (20604041793244).

Almost surely, 2^{501003542545044} is an apocalyptic number.

It is an amenable number.

501003542545044 is an abundant number, since it is smaller than the sum of its proper divisors (982487466568524).

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

501003542545044 is a wasteful number, since it uses less digits than its factorization.

501003542545044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77458803765 (or 77458803756 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 42.

Adding to 501003542545044 its reverse (440545245300105), we get a palindrome (941548787845149).

The spelling of 501003542545044 in words is "five hundred one trillion, three billion, five hundred forty-two million, five hundred forty-five thousand, forty-four".