2781992365 has 8 divisors (see below), whose sum is σ = 3345084000. Its totient is φ = 2221131792.

The previous prime is 2781992341. The next prime is 2781992377. The reversal of 2781992365 is 5632991872.

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

It is a cyclic number.

It is not a de Polignac number, because 2781992365 - 2⁵ = 2781992333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555019 + ... + 560008.

It is an arithmetic number, because the mean of its divisors is an integer number (418135500).

Almost surely, 2^2781992365 is an apocalyptic number.

It is an amenable number.

2781992365 is a deficient number, since it is larger than the sum of its proper divisors (563091635).

2781992365 is a wasteful number, since it uses less digits than its factorization.

2781992365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115531.

The product of its digits is 1632960, while the sum is 52.

The square root of 2781992365 is about 52744.5955999285. The cubic root of 2781992365 is about 1406.4316936855.

The spelling of 2781992365 in words is "two billion, seven hundred eighty-one million, nine hundred ninety-two thousand, three hundred sixty-five".