2781474705 has 24 divisors (see below), whose sum is σ = 4823639808. Its totient is φ = 1482709536.

The previous prime is 2781474671. The next prime is 2781474713. The reversal of 2781474705 is 5074741872.

It is not a de Polignac number, because 2781474705 - 2¹¹ = 2781472657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82014 + ... + 110856.

It is an arithmetic number, because the mean of its divisors is an integer number (200984992).

Almost surely, 2^2781474705 is an apocalyptic number.

It is an amenable number.

2781474705 is a deficient number, since it is larger than the sum of its proper divisors (2042165103).

2781474705 is a wasteful number, since it uses less digits than its factorization.

2781474705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30997 (or 30994 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The square root of 2781474705 is about 52739.6881390097. The cubic root of 2781474705 is about 1406.3444542186.

The spelling of 2781474705 in words is "two billion, seven hundred eighty-one million, four hundred seventy-four thousand, seven hundred five".