1086821835663 has 32 divisors (see below), whose sum is σ = 1493341686720. Its totient is φ = 702770432000.

The previous prime is 1086821835581. The next prime is 1086821835703. The reversal of 1086821835663 is 3665381286801.

It is a cyclic number.

It is not a de Polignac number, because 1086821835663 - 2¹⁰ = 1086821834639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086821835163) 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, 6911413 + ... + 7066913.

It is an arithmetic number, because the mean of its divisors is an integer number (46666927710).

Almost surely, 2^{1086821835663} is an apocalyptic number.

1086821835663 is a deficient number, since it is larger than the sum of its proper divisors (406519851057).

1086821835663 is a wasteful number, since it uses less digits than its factorization.

1086821835663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156059.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 1086821835663 in words is "one trillion, eighty-six billion, eight hundred twenty-one million, eight hundred thirty-five thousand, six hundred sixty-three".