472457572721816 has 16 divisors (see below), whose sum is σ = 966390489658440. Its totient is φ = 214753442146240.

The previous prime is 472457572721779. The next prime is 472457572721861. The reversal of 472457572721816 is 618127275754274.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2684418026741 + ... + 2684418026916.

Almost surely, 2^{472457572721816} is an apocalyptic number.

It is an amenable number.

472457572721816 is an abundant number, since it is smaller than the sum of its proper divisors (493932916936624).

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

472457572721816 is a wasteful number, since it uses less digits than its factorization.

472457572721816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368836053674 (or 5368836053670 counting only the distinct ones).

The product of its digits is 368793600, while the sum is 68.

The spelling of 472457572721816 in words is "four hundred seventy-two trillion, four hundred fifty-seven billion, five hundred seventy-two million, seven hundred twenty-one thousand, eight hundred sixteen".