501696685860 has 96 divisors (see below), whose sum is σ = 1452481250304. Its totient is φ = 129254400000.

The previous prime is 501696685859. The next prime is 501696685871. The reversal of 501696685860 is 68586696105.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 501696685794 and 501696685803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893460 + ... + 1342260.

It is an arithmetic number, because the mean of its divisors is an integer number (15130013024).

Almost surely, 2^501696685860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501696685860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726240625152).

501696685860 is an abundant number, since it is smaller than the sum of its proper divisors (950784564444).

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

501696685860 is a wasteful number, since it uses less digits than its factorization.

501696685860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449445 (or 449443 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 60.

The spelling of 501696685860 in words is "five hundred one billion, six hundred ninety-six million, six hundred eighty-five thousand, eight hundred sixty".