1086821721183 has 32 divisors (see below), whose sum is σ = 1631046896640. Its totient is φ = 638071424640.

The previous prime is 1086821721103. The next prime is 1086821721203. The reversal of 1086821721183 is 3811271286801.

It is not a de Polignac number, because 1086821721183 - 2³⁰ = 1085747979359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086821721103) 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, 3794716 + ... + 4071057.

It is an arithmetic number, because the mean of its divisors is an integer number (50970215520).

Almost surely, 2^{1086821721183} is an apocalyptic number.

1086821721183 is a deficient number, since it is larger than the sum of its proper divisors (544225175457).

1086821721183 is a wasteful number, since it uses less digits than its factorization.

1086821721183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7865919.

The product of its (nonzero) digits is 258048, while the sum is 48.

The spelling of 1086821721183 in words is "one trillion, eighty-six billion, eight hundred twenty-one million, seven hundred twenty-one thousand, one hundred eighty-three".