1381061867709 has 8 divisors (see below), whose sum is σ = 1841784643072. Its totient is φ = 920523502080.

The previous prime is 1381061867683. The next prime is 1381061867719. The reversal of 1381061867709 is 9077681601831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1381061867709 - 2¹¹ = 1381061865661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381061867719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46084957 + ... + 46114914.

It is an arithmetic number, because the mean of its divisors is an integer number (230223080384).

Almost surely, 2^{1381061867709} is an apocalyptic number.

It is an amenable number.

1381061867709 is a deficient number, since it is larger than the sum of its proper divisors (460722775363).

1381061867709 is an equidigital number, since it uses as much as digits as its factorization.

1381061867709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92204867.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The spelling of 1381061867709 in words is "one trillion, three hundred eighty-one billion, sixty-one million, eight hundred sixty-seven thousand, seven hundred nine".