501121938993 has 64 divisors (see below), whose sum is σ = 772015587840. Its totient is φ = 286675918848.

The previous prime is 501121938991. The next prime is 501121939013. The reversal of 501121938993 is 399839121105.

It is not a de Polignac number, because 501121938993 - 2¹ = 501121938991 is a prime.

It is a super-2 number, since 2×501121938993² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (501121938991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30824455 + ... + 30840707.

It is an arithmetic number, because the mean of its divisors is an integer number (12062743560).

Almost surely, 2^501121938993 is an apocalyptic number.

It is an amenable number.

501121938993 is a deficient number, since it is larger than the sum of its proper divisors (270893648847).

501121938993 is a wasteful number, since it uses less digits than its factorization.

501121938993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17258.

The product of its (nonzero) digits is 524880, while the sum is 51.

The spelling of 501121938993 in words is "five hundred one billion, one hundred twenty-one million, nine hundred thirty-eight thousand, nine hundred ninety-three".