2781474676 has 36 divisors (see below), whose sum is σ = 5145763140. Its totient is φ = 1315359360.

The previous prime is 2781474671. The next prime is 2781474713. The reversal of 2781474676 is 6764741872.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 947408400 + 1834066276 = 30780^2 + 42826^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781474671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1167006 + ... + 1169386.

It is an arithmetic number, because the mean of its divisors is an integer number (142937865).

Almost surely, 2^2781474676 is an apocalyptic number.

It is an amenable number.

2781474676 is a deficient number, since it is larger than the sum of its proper divisors (2364288464).

2781474676 is a wasteful number, since it uses less digits than its factorization.

2781474676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232 (or 3211 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 52.

The square root of 2781474676 is about 52739.6878640744. The cubic root of 2781474676 is about 1406.3444493310.

The spelling of 2781474676 in words is "two billion, seven hundred eighty-one million, four hundred seventy-four thousand, six hundred seventy-six".