501641343252 has 36 divisors (see below), whose sum is σ = 1449186103456. Its totient is φ = 143326098000.

The previous prime is 501641343223. The next prime is 501641343277. The reversal of 501641343252 is 252343146105.

501641343252 is a `hidden beast` number, since 5 + 0 + 1 + 64 + 1 + 343 + 252 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 995319874 + ... + 995320377.

Almost surely, 2^501641343252 is an apocalyptic number.

It is an amenable number.

501641343252 is an abundant number, since it is smaller than the sum of its proper divisors (947544760204).

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

501641343252 is a wasteful number, since it uses less digits than its factorization.

501641343252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990640268 (or 1990640263 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 501641343252 its reverse (252343146105), we get a palindrome (753984489357).

The spelling of 501641343252 in words is "five hundred one billion, six hundred forty-one million, three hundred forty-three thousand, two hundred fifty-two".