350784021856 has 48 divisors (see below), whose sum is σ = 701985236400. Its totient is φ = 172522487808.

The previous prime is 350784021823. The next prime is 350784021857. The reversal of 350784021856 is 658120487053.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350784021857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230575 + ... + 868753.

It is an arithmetic number, because the mean of its divisors is an integer number (14624692425).

Almost surely, 2^350784021856 is an apocalyptic number.

It is an amenable number.

350784021856 is an abundant number, since it is smaller than the sum of its proper divisors (351201214544).

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

350784021856 is a wasteful number, since it uses less digits than its factorization.

350784021856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638471 (or 638463 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 350784021856 in words is "three hundred fifty billion, seven hundred eighty-four million, twenty-one thousand, eight hundred fifty-six".