2785383522340 has 12 divisors (see below), whose sum is σ = 5849305396956. Its totient is φ = 1114153408928.

The previous prime is 2785383522329. The next prime is 2785383522371. The reversal of 2785383522340 is 432253835872.

It can be written as a sum of positive squares in 2 ways, for example, as 2122126389504 + 663257132836 = 1456752^2 + 814406^2 .

It is a super-2 number, since 2×2785383522340² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69634588039 + ... + 69634588078.

It is an arithmetic number, because the mean of its divisors is an integer number (487442116413).

Almost surely, 2^{2785383522340} is an apocalyptic number.

2785383522340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2785383522340 is an abundant number, since it is smaller than the sum of its proper divisors (3063921874616).

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

2785383522340 is a wasteful number, since it uses less digits than its factorization.

2785383522340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139269176126 (or 139269176124 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 52.

The spelling of 2785383522340 in words is "two trillion, seven hundred eighty-five billion, three hundred eighty-three million, five hundred twenty-two thousand, three hundred forty".