501643790312 has 128 divisors (see below), whose sum is σ = 1128319795200. Its totient is φ = 204567897600.

The previous prime is 501643790309. The next prime is 501643790321. The reversal of 501643790312 is 213097346105.

It is a self number, because there is not a number n which added to its sum of digits gives 501643790312.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41940989 + ... + 41952947.

It is an arithmetic number, because the mean of its divisors is an integer number (8814998400).

Almost surely, 2^501643790312 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 501643790312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564159897600).

501643790312 is an abundant number, since it is smaller than the sum of its proper divisors (626676004888).

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

501643790312 is a wasteful number, since it uses less digits than its factorization.

501643790312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12407 (or 12403 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 501643790312 in words is "five hundred one billion, six hundred forty-three million, seven hundred ninety thousand, three hundred twelve".