2781381061468 has 12 divisors (see below), whose sum is σ = 4868672344312. Its totient is φ = 1390331820240.

The previous prime is 2781381061429. The next prime is 2781381061519. The reversal of 2781381061468 is 8641601831872.

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, 89660178 + ... + 89691193.

Almost surely, 2^{2781381061468} is an apocalyptic number.

It is an amenable number.

2781381061468 is a deficient number, since it is larger than the sum of its proper divisors (2087291282844).

2781381061468 is a wasteful number, since it uses less digits than its factorization.

2781381061468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179355252 (or 179355250 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 2781381061468 in words is "two trillion, seven hundred eighty-one billion, three hundred eighty-one million, sixty-one thousand, four hundred sixty-eight".