501050001918 has 16 divisors (see below), whose sum is σ = 1025404655616. Its totient is φ = 163132558680.

The previous prime is 501050001899. The next prime is 501050001919. The reversal of 501050001918 is 819100050105.

It is a super-2 number, since 2×501050001918² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501050001919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971026878 + ... + 971027393.

It is an arithmetic number, because the mean of its divisors is an integer number (64087790976).

Almost surely, 2^501050001918 is an apocalyptic number.

501050001918 is an abundant number, since it is smaller than the sum of its proper divisors (524354653698).

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

501050001918 is a wasteful number, since it uses less digits than its factorization.

501050001918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942054319.

The product of its (nonzero) digits is 1800, while the sum is 30.

The spelling of 501050001918 in words is "five hundred one billion, fifty million, one thousand, nine hundred eighteen".