1385673552536 has 128 divisors (see below), whose sum is σ = 3315039436800. Its totient is φ = 528216560640.

The previous prime is 1385673552533. The next prime is 1385673552547. The reversal of 1385673552536 is 6352553765831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385673552533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5126585 + ... + 5390103.

It is an arithmetic number, because the mean of its divisors is an integer number (25898745600).

Almost surely, 2^{1385673552536} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1385673552536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657519718400).

1385673552536 is an abundant number, since it is smaller than the sum of its proper divisors (1929365884264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385673552536 is a wasteful number, since it uses less digits than its factorization.

1385673552536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263809 (or 263805 counting only the distinct ones).

The product of its digits is 68040000, while the sum is 59.

The spelling of 1385673552536 in words is "one trillion, three hundred eighty-five billion, six hundred seventy-three million, five hundred fifty-two thousand, five hundred thirty-six".