1685012570013 has 8 divisors (see below), whose sum is σ = 2246721586848. Its totient is φ = 1123322633264.

The previous prime is 1685012570009. The next prime is 1685012570023. The reversal of 1685012570013 is 3100752105861.

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 1685012570013 - 2² = 1685012570009 is a prime.

It is a super-2 number, since 2×1685012570013² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685012570023) 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, 4562670 + ... + 4918127.

It is an arithmetic number, because the mean of its divisors is an integer number (280840198356).

Almost surely, 2^{1685012570013} is an apocalyptic number.

It is an amenable number.

1685012570013 is a deficient number, since it is larger than the sum of its proper divisors (561709016835).

1685012570013 is an equidigital number, since it uses as much as digits as its factorization.

1685012570013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9540043.

The product of its (nonzero) digits is 50400, while the sum is 39.

Adding to 1685012570013 its reverse (3100752105861), we get a palindrome (4785764675874).

The spelling of 1685012570013 in words is "one trillion, six hundred eighty-five billion, twelve million, five hundred seventy thousand, thirteen".