2781455802 has 8 divisors (see below), whose sum is σ = 5562911616. Its totient is φ = 927151932.

The previous prime is 2781455701. The next prime is 2781455813. The reversal of 2781455802 is 2085541872.

It is a sphenic number, since it is the product of 3 distinct primes.

2781455802 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231787978 + ... + 231787989.

It is an arithmetic number, because the mean of its divisors is an integer number (695363952).

Almost surely, 2^2781455802 is an apocalyptic number.

2781455802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2781455802 is a wasteful number, since it uses less digits than its factorization.

2781455802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463575972.

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 2781455802 is about 52739.5089283167. The cubic root of 2781455802 is about 1406.3412683559.

The spelling of 2781455802 in words is "two billion, seven hundred eighty-one million, four hundred fifty-five thousand, eight hundred two".