1385773402738 has 16 divisors (see below), whose sum is σ = 2205708513624. Its totient is φ = 650714056960.

The previous prime is 1385773402729. The next prime is 1385773402751. The reversal of 1385773402738 is 8372043775831.

It can be written as a sum of positive squares in 4 ways, for example, as 1087813538289 + 297959864449 = 1042983^2 + 545857^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44190445 + ... + 44221792.

Almost surely, 2^{1385773402738} is an apocalyptic number.

1385773402738 is a deficient number, since it is larger than the sum of its proper divisors (819935110886).

1385773402738 is a wasteful number, since it uses less digits than its factorization.

1385773402738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88412717.

The product of its (nonzero) digits is 23708160, while the sum is 58.

The spelling of 1385773402738 in words is "one trillion, three hundred eighty-five billion, seven hundred seventy-three million, four hundred two thousand, seven hundred thirty-eight".