1381359672001 has 4 divisors (see below), whose sum is σ = 1383475077972. Its totient is φ = 1379244266032.

The previous prime is 1381359671977. The next prime is 1381359672037. The reversal of 1381359672001 is 1002769531831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 332005287601 + 1049354384400 = 576199^2 + 1024380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1381359672001 - 2⁵ = 1381359671969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381359672041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057702006 + ... + 1057703311.

It is an arithmetic number, because the mean of its divisors is an integer number (345868769493).

Almost surely, 2^{1381359672001} is an apocalyptic number.

It is an amenable number.

1381359672001 is a deficient number, since it is larger than the sum of its proper divisors (2115405971).

1381359672001 is an equidigital number, since it uses as much as digits as its factorization.

1381359672001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115405970.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 1381359672001 in words is "one trillion, three hundred eighty-one billion, three hundred fifty-nine million, six hundred seventy-two thousand, one".