1381544931415 has 16 divisors (see below), whose sum is σ = 1808597219616. Its totient is φ = 1004743667200.

The previous prime is 1381544931407. The next prime is 1381544931427. The reversal of 1381544931415 is 5141394451831.

It is not a de Polignac number, because 1381544931415 - 2³ = 1381544931407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4005195 + ... + 4336435.

It is an arithmetic number, because the mean of its divisors is an integer number (113037326226).

Almost surely, 2^{1381544931415} is an apocalyptic number.

1381544931415 is a deficient number, since it is larger than the sum of its proper divisors (427052288201).

1381544931415 is a wasteful number, since it uses less digits than its factorization.

1381544931415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407090.

The product of its digits is 1036800, while the sum is 49.

The spelling of 1381544931415 in words is "one trillion, three hundred eighty-one billion, five hundred forty-four million, nine hundred thirty-one thousand, four hundred fifteen".