1378751552513 has 4 divisors (see below), whose sum is σ = 1378813516080. Its totient is φ = 1378689588948.

The previous prime is 1378751552491. The next prime is 1378751552531. The reversal of 1378751552513 is 3152551578731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1378751552513 - 2¹⁸ = 1378751290369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378751552573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30948395 + ... + 30992912.

It is an arithmetic number, because the mean of its divisors is an integer number (344703379020).

Almost surely, 2^{1378751552513} is an apocalyptic number.

It is an amenable number.

1378751552513 is a deficient number, since it is larger than the sum of its proper divisors (61963567).

1378751552513 is an equidigital number, since it uses as much as digits as its factorization.

1378751552513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61963566.

The product of its digits is 4410000, while the sum is 53.

The spelling of 1378751552513 in words is "one trillion, three hundred seventy-eight billion, seven hundred fifty-one million, five hundred fifty-two thousand, five hundred thirteen".