2781079148404 has 12 divisors (see below), whose sum is σ = 4867089549700. Its totient is φ = 1390482134208.

The previous prime is 2781079148363. The next prime is 2781079148461. The reversal of 2781079148404 is 4048419701872.

It can be written as a sum of positive squares in 2 ways, for example, as 105139359504 + 2675939788900 = 324252^2 + 1635830^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14250969 + ... + 14444800.

Almost surely, 2^{2781079148404} is an apocalyptic number.

It is an amenable number.

2781079148404 is a deficient number, since it is larger than the sum of its proper divisors (2086010401296).

2781079148404 is a wasteful number, since it uses less digits than its factorization.

2781079148404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28720002 (or 28720000 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 55.

The spelling of 2781079148404 in words is "two trillion, seven hundred eighty-one billion, seventy-nine million, one hundred forty-eight thousand, four hundred four".