1780049168 has 30 divisors (see below), whose sum is σ = 3468666942. Its totient is φ = 884922240.

The previous prime is 1780049123. The next prime is 1780049207. The reversal of 1780049168 is 8619400871.

It can be written as a sum of positive squares in only one way, i.e., 1291108624 + 488940544 = 35932^2 + 22112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2575703 + ... + 2576393.

Almost surely, 2^1780049168 is an apocalyptic number.

It is an amenable number.

1780049168 is a deficient number, since it is larger than the sum of its proper divisors (1688617774).

1780049168 is an frugal number, since it uses more digits than its factorization.

1780049168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1780049168 is about 42190.6289121174. The cubic root of 1780049168 is about 1211.9294327295.

The spelling of 1780049168 in words is "one billion, seven hundred eighty million, forty-nine thousand, one hundred sixty-eight".