1780834202352 has 60 divisors (see below), whose sum is σ = 5144632153024. Its totient is φ = 574462644480.

The previous prime is 1780834202351. The next prime is 1780834202359. The reversal of 1780834202352 is 2532024380871.

1780834202352 is a `hidden beast` number, since 1 + 7 + 80 + 83 + 420 + 23 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1780834202298 and 1780834202307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1780834202351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199461733 + ... + 199470660.

Almost surely, 2^{1780834202352} is an apocalyptic number.

1780834202352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1780834202352 is an abundant number, since it is smaller than the sum of its proper divisors (3363797950672).

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

1780834202352 is a wasteful number, since it uses less digits than its factorization.

1780834202352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398932438 (or 398932429 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 1780834202352 in words is "one trillion, seven hundred eighty billion, eight hundred thirty-four million, two hundred two thousand, three hundred fifty-two".