1381406541363 has 24 divisors (see below), whose sum is σ = 2005412494800. Its totient is φ = 916302965760.

The previous prime is 1381406541349. The next prime is 1381406541401. The reversal of 1381406541363 is 3631456041831.

1381406541363 is a `hidden beast` number, since 1 + 3 + 8 + 1 + 40 + 6 + 541 + 3 + 63 = 666.

It is not a de Polignac number, because 1381406541363 - 2⁹ = 1381406540851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1381406541313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6444195 + ... + 6655107.

It is an arithmetic number, because the mean of its divisors is an integer number (83558853950).

Almost surely, 2^{1381406541363} is an apocalyptic number.

1381406541363 is a deficient number, since it is larger than the sum of its proper divisors (624005953437).

1381406541363 is a wasteful number, since it uses less digits than its factorization.

1381406541363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214579 (or 214576 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 1381406541363 in words is "one trillion, three hundred eighty-one billion, four hundred six million, five hundred forty-one thousand, three hundred sixty-three".