501342636500 has 48 divisors (see below), whose sum is σ = 1104622109136. Its totient is φ = 198762368000.

The previous prime is 501342636499. The next prime is 501342636521. The reversal of 501342636500 is 5636243105.

It can be written as a sum of positive squares in 8 ways, for example, as 226953148816 + 274389487684 = 476396^2 + 523822^2 .

It is a super-2 number, since 2×501342636500² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4380161 + ... + 4493160.

It is an arithmetic number, because the mean of its divisors is an integer number (23012960607).

Almost surely, 2^501342636500 is an apocalyptic number.

501342636500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

501342636500 is an abundant number, since it is smaller than the sum of its proper divisors (603279472636).

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

501342636500 is a wasteful number, since it uses less digits than its factorization.

501342636500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873453 (or 8873441 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 501342636500 its reverse (5636243105), we get a palindrome (506978879605).

The spelling of 501342636500 in words is "five hundred one billion, three hundred forty-two million, six hundred thirty-six thousand, five hundred".