2780565132 has 48 divisors (see below), whose sum is σ = 6522711552. Its totient is φ = 921910080.

The previous prime is 2780565121. The next prime is 2780565173. The reversal of 2780565132 is 2315650872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3051757 + ... + 3052667.

It is an arithmetic number, because the mean of its divisors is an integer number (135889824).

Almost surely, 2^2780565132 is an apocalyptic number.

It is an amenable number.

2780565132 is an abundant number, since it is smaller than the sum of its proper divisors (3742146420).

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

2780565132 is a wasteful number, since it uses less digits than its factorization.

2780565132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2780565132 is about 52731.0642031810. The cubic root of 2780565132 is about 1406.1911407740.

The spelling of 2780565132 in words is "two billion, seven hundred eighty million, five hundred sixty-five thousand, one hundred thirty-two".