2780811152 has 30 divisors (see below), whose sum is σ = 6267467718. Its totient is φ = 1191775872.

The previous prime is 2780811149. The next prime is 2780811191. The reversal of 2780811152 is 2511180872.

It can be written as a sum of positive squares in only one way, i.e., 1747574416 + 1033236736 = 41804^2 + 32144^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1772693 + ... + 1774260.

Almost surely, 2^2780811152 is an apocalyptic number.

It is an amenable number.

2780811152 is an abundant number, since it is smaller than the sum of its proper divisors (3486656566).

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

2780811152 is a wasteful number, since it uses less digits than its factorization.

2780811152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546975 (or 3546962 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 35.

The square root of 2780811152 is about 52733.3969321150. The cubic root of 2780811152 is about 1406.2326120727.

The spelling of 2780811152 in words is "two billion, seven hundred eighty million, eight hundred eleven thousand, one hundred fifty-two".