1376897989135 has 4 divisors (see below), whose sum is σ = 1652277586968. Its totient is φ = 1101518391304.

The previous prime is 1376897989067. The next prime is 1376897989139. The reversal of 1376897989135 is 5319897986731.

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

It is a cyclic number.

It is not a de Polignac number, because 1376897989135 - 2⁷ = 1376897989007 is a prime.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376897989139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137689798909 + ... + 137689798918.

It is an arithmetic number, because the mean of its divisors is an integer number (413069396742).

Almost surely, 2^{1376897989135} is an apocalyptic number.

1376897989135 is a deficient number, since it is larger than the sum of its proper divisors (275379597833).

1376897989135 is an equidigital number, since it uses as much as digits as its factorization.

1376897989135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275379597832.

The product of its digits is 617258880, while the sum is 76.

The spelling of 1376897989135 in words is "one trillion, three hundred seventy-six billion, eight hundred ninety-seven million, nine hundred eighty-nine thousand, one hundred thirty-five".