351320451212240 has 80 divisors (see below), whose sum is σ = 848218000573440. Its totient is φ = 135180671815680.

The previous prime is 351320451212231. The next prime is 351320451212261. The reversal of 351320451212240 is 42212154023153.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 351320451212240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423721985 + ... + 424550304.

It is an arithmetic number, because the mean of its divisors is an integer number (10602725007168).

Almost surely, 2^{351320451212240} is an apocalyptic number.

It is an amenable number.

351320451212240 is an abundant number, since it is smaller than the sum of its proper divisors (496897549361200).

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

351320451212240 is a wasteful number, since it uses less digits than its factorization.

351320451212240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848272500 (or 848272494 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 351320451212240 in words is "three hundred fifty-one trillion, three hundred twenty billion, four hundred fifty-one million, two hundred twelve thousand, two hundred forty".