1206856749745 has 8 divisors (see below), whose sum is σ = 1494945135360. Its totient is φ = 934340709360.

The previous prime is 1206856749737. The next prime is 1206856749751. The reversal of 1206856749745 is 5479476586021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1206856749745 - 2³ = 1206856749737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3893086135 + ... + 3893086444.

It is an arithmetic number, because the mean of its divisors is an integer number (186868141920).

Almost surely, 2^{1206856749745} is an apocalyptic number.

It is an amenable number.

1206856749745 is a deficient number, since it is larger than the sum of its proper divisors (288088385615).

1206856749745 is an equidigital number, since it uses as much as digits as its factorization.

1206856749745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786172615.

The product of its (nonzero) digits is 101606400, while the sum is 64.

The spelling of 1206856749745 in words is "one trillion, two hundred six billion, eight hundred fifty-six million, seven hundred forty-nine thousand, seven hundred forty-five".