2781294374 has 16 divisors (see below), whose sum is σ = 4216935840. Its totient is φ = 1375678080.

The previous prime is 2781294371. The next prime is 2781294377. The reversal of 2781294374 is 4734921872.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2781294371) and next prime (2781294377).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781294371) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 201164 + ... + 214544.

It is an arithmetic number, because the mean of its divisors is an integer number (263558490).

Almost surely, 2^2781294374 is an apocalyptic number.

2781294374 is a deficient number, since it is larger than the sum of its proper divisors (1435641466).

2781294374 is a wasteful number, since it uses less digits than its factorization.

2781294374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14495.

The product of its digits is 677376, while the sum is 47.

The square root of 2781294374 is about 52737.9784785120. The cubic root of 2781294374 is about 1406.3140611107.

The spelling of 2781294374 in words is "two billion, seven hundred eighty-one million, two hundred ninety-four thousand, three hundred seventy-four".