1381186348906 has 64 divisors (see below), whose sum is σ = 2705972790528. Its totient is φ = 513100643328.

The previous prime is 1381186348849. The next prime is 1381186348939. The reversal of 1381186348906 is 6098436811831.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 866796 + ... + 1874488.

It is an arithmetic number, because the mean of its divisors is an integer number (42280824852).

Almost surely, 2^{1381186348906} is an apocalyptic number.

1381186348906 is a deficient number, since it is larger than the sum of its proper divisors (1324786441622).

1381186348906 is a wasteful number, since it uses less digits than its factorization.

1381186348906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008175.

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 1381186348906 in words is "one trillion, three hundred eighty-one billion, one hundred eighty-six million, three hundred forty-eight thousand, nine hundred six".