1378170805328 has 10 divisors (see below), whose sum is σ = 2670205935354. Its totient is φ = 689085402656.

The previous prime is 1378170805303. The next prime is 1378170805357. The reversal of 1378170805328 is 8235080718731.

It can be written as a sum of positive squares in only one way, i.e., 1353937033744 + 24233771584 = 1163588^2 + 155672^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1378170805328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43067837651 + ... + 43067837682.

Almost surely, 2^{1378170805328} is an apocalyptic number.

It is an amenable number.

1378170805328 is a deficient number, since it is larger than the sum of its proper divisors (1292035130026).

1378170805328 is an equidigital number, since it uses as much as digits as its factorization.

1378170805328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86135675341 (or 86135675335 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 1378170805328 in words is "one trillion, three hundred seventy-eight billion, one hundred seventy million, eight hundred five thousand, three hundred twenty-eight".