1985677133297 has 16 divisors (see below), whose sum is σ = 2333263786560. Its totient is φ = 1665987988800.

The previous prime is 1985677133287. The next prime is 1985677133299. The reversal of 1985677133297 is 7923317765891.

It is a cyclic number.

It is not a de Polignac number, because 1985677133297 - 2¹⁸ = 1985676871153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1985677133299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548579 + ... + 2066952.

It is an arithmetic number, because the mean of its divisors is an integer number (145828986660).

Almost surely, 2^{1985677133297} is an apocalyptic number.

It is an amenable number.

1985677133297 is a deficient number, since it is larger than the sum of its proper divisors (347586653263).

1985677133297 is a wasteful number, since it uses less digits than its factorization.

1985677133297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620864.

The product of its digits is 120022560, while the sum is 68.

The spelling of 1985677133297 in words is "one trillion, nine hundred eighty-five billion, six hundred seventy-seven million, one hundred thirty-three thousand, two hundred ninety-seven".