351205510012 has 72 divisors (see below), whose sum is σ = 739875850560. Its totient is φ = 145273726080.

The previous prime is 351205510003. The next prime is 351205510039. The reversal of 351205510012 is 210015502153.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18298573 + ... + 18317755.

It is an arithmetic number, because the mean of its divisors is an integer number (10276053480).

Almost surely, 2^351205510012 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 351205510012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369937925280).

351205510012 is an abundant number, since it is smaller than the sum of its proper divisors (388670340548).

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

351205510012 is a wasteful number, since it uses less digits than its factorization.

351205510012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22451 (or 22442 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 351205510012 in words is "three hundred fifty-one billion, two hundred five million, five hundred ten thousand, twelve".