1385285563537 has 8 divisors (see below), whose sum is σ = 1409443877120. Its totient is φ = 1361267298720.

The previous prime is 1385285563451. The next prime is 1385285563567. The reversal of 1385285563537 is 7353655825831.

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

It is a cyclic number.

It is not a de Polignac number, because 1385285563537 - 2¹¹ = 1385285561489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385285563567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34992237 + ... + 35031802.

It is an arithmetic number, because the mean of its divisors is an integer number (176180484640).

Almost surely, 2^{1385285563537} is an apocalyptic number.

It is an amenable number.

1385285563537 is a deficient number, since it is larger than the sum of its proper divisors (24158313583).

1385285563537 is an equidigital number, since it uses as much as digits as its factorization.

1385285563537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70024383.

The product of its digits is 90720000, while the sum is 61.

The spelling of 1385285563537 in words is "one trillion, three hundred eighty-five billion, two hundred eighty-five million, five hundred sixty-three thousand, five hundred thirty-seven".