1378745884605 has 16 divisors (see below), whose sum is σ = 2259798133824. Its totient is φ = 717396232320.

The previous prime is 1378745884553. The next prime is 1378745884661. The reversal of 1378745884605 is 5064885478731.

It is not a de Polignac number, because 1378745884605 - 2¹⁴ = 1378745868221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120930999 + ... + 1120932228.

It is an arithmetic number, because the mean of its divisors is an integer number (141237383364).

Almost surely, 2^{1378745884605} is an apocalyptic number.

1378745884605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1378745884605 is a deficient number, since it is larger than the sum of its proper divisors (881052249219).

1378745884605 is a wasteful number, since it uses less digits than its factorization.

1378745884605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241863276.

The product of its (nonzero) digits is 180633600, while the sum is 66.

The spelling of 1378745884605 in words is "one trillion, three hundred seventy-eight billion, seven hundred forty-five million, eight hundred eighty-four thousand, six hundred five".