1385638785362 has 8 divisors (see below), whose sum is σ = 2238339576396. Its totient is φ = 639525593232.

The previous prime is 1385638785361. The next prime is 1385638785371. The reversal of 1385638785362 is 2635878365831.

It can be written as a sum of positive squares in 2 ways, for example, as 1078878993481 + 306759791881 = 1038691^2 + 553859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1385638785361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26646899693 + ... + 26646899744.

Almost surely, 2^{1385638785362} is an apocalyptic number.

1385638785362 is a deficient number, since it is larger than the sum of its proper divisors (852700791034).

1385638785362 is a wasteful number, since it uses less digits than its factorization.

1385638785362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53293799452.

The product of its digits is 174182400, while the sum is 65.

The spelling of 1385638785362 in words is "one trillion, three hundred eighty-five billion, six hundred thirty-eight million, seven hundred eighty-five thousand, three hundred sixty-two".