2347809505380 has 144 divisors (see below), whose sum is σ = 7163470379520. Its totient is φ = 622411398144.

The previous prime is 2347809505343. The next prime is 2347809505507. The reversal of 2347809505380 is 835059087432.

2347809505380 is a `hidden beast` number, since 2 + 3 + 478 + 0 + 95 + 0 + 5 + 3 + 80 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150040717 + ... + 150056363.

It is an arithmetic number, because the mean of its divisors is an integer number (49746322080).

Almost surely, 2^{2347809505380} is an apocalyptic number.

2347809505380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2347809505380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3581735189760).

2347809505380 is an abundant number, since it is smaller than the sum of its proper divisors (4815660874140).

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

2347809505380 is a wasteful number, since it uses less digits than its factorization.

2347809505380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20498 (or 20493 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 2347809505380 in words is "two trillion, three hundred forty-seven billion, eight hundred nine million, five hundred five thousand, three hundred eighty".