1686553606139 has 8 divisors (see below), whose sum is σ = 1692054592800. Its totient is φ = 1681053120000.

The previous prime is 1686553606099. The next prime is 1686553606151. The reversal of 1686553606139 is 9316063556861.

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 1686553606139 - 2²⁴ = 1686536828923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1686553603139) 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, 7351337 + ... + 7577285.

It is an arithmetic number, because the mean of its divisors is an integer number (211506824100).

Almost surely, 2^{1686553606139} is an apocalyptic number.

1686553606139 is a deficient number, since it is larger than the sum of its proper divisors (5500986661).

1686553606139 is a wasteful number, since it uses less digits than its factorization.

1686553606139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250261.

The product of its (nonzero) digits is 20995200, while the sum is 59.

The spelling of 1686553606139 in words is "one trillion, six hundred eighty-six billion, five hundred fifty-three million, six hundred six thousand, one hundred thirty-nine".