1376379126289 has 4 divisors (see below), whose sum is σ = 1457342604324. Its totient is φ = 1295415648256.

The previous prime is 1376379126259. The next prime is 1376379126301. The reversal of 1376379126289 is 9826219736731.

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 853083140625 + 523295985664 = 923625^2 + 723392^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376379126289 - 2⁵ = 1376379126257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1376379126289.

It is not an unprimeable number, because it can be changed into a prime (1376379126229) 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, 40481738992 + ... + 40481739025.

It is an arithmetic number, because the mean of its divisors is an integer number (364335651081).

Almost surely, 2^{1376379126289} is an apocalyptic number.

It is an amenable number.

1376379126289 is a deficient number, since it is larger than the sum of its proper divisors (80963478035).

1376379126289 is an equidigital number, since it uses as much as digits as its factorization.

1376379126289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80963478034.

The product of its digits is 41150592, while the sum is 64.

The spelling of 1376379126289 in words is "one trillion, three hundred seventy-six billion, three hundred seventy-nine million, one hundred twenty-six thousand, two hundred eighty-nine".