830780345500 has 96 divisors (see below), whose sum is σ = 2074450105728. Its totient is φ = 284726016000.

The previous prime is 830780345489. The next prime is 830780345503. The reversal of 830780345500 is 5543087038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830780345503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9029730 + ... + 9121270.

It is an arithmetic number, because the mean of its divisors is an integer number (21608855268).

Almost surely, 2^830780345500 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 830780345500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037225052864).

830780345500 is an abundant number, since it is smaller than the sum of its proper divisors (1243669760228).

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

830780345500 is a wasteful number, since it uses less digits than its factorization.

830780345500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94160 (or 94148 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 830780345500 in words is "eight hundred thirty billion, seven hundred eighty million, three hundred forty-five thousand, five hundred".