1086856845437 has 4 divisors (see below), whose sum is σ = 1185662013216. Its totient is φ = 988051677660.

The previous prime is 1086856845433. The next prime is 1086856845461. The reversal of 1086856845437 is 7345486586801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1086856845437 - 2² = 1086856845433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086856845433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49402583873 + ... + 49402583894.

It is an arithmetic number, because the mean of its divisors is an integer number (296415503304).

Almost surely, 2^{1086856845437} is an apocalyptic number.

It is an amenable number.

1086856845437 is a deficient number, since it is larger than the sum of its proper divisors (98805167779).

1086856845437 is an equidigital number, since it uses as much as digits as its factorization.

1086856845437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98805167778.

The product of its (nonzero) digits is 154828800, while the sum is 65.

The spelling of 1086856845437 in words is "one trillion, eighty-six billion, eight hundred fifty-six million, eight hundred forty-five thousand, four hundred thirty-seven".