1063856073947 has 4 divisors (see below), whose sum is σ = 1088596912920. Its totient is φ = 1039115234976.

The previous prime is 1063856073919. The next prime is 1063856073983. The reversal of 1063856073947 is 7493706583601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1063856073947 - 2²⁰ = 1063855025371 is a prime.

It is a super-2 number, since 2×1063856073947² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1063856073997) 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, 12370419422 + ... + 12370419507.

It is an arithmetic number, because the mean of its divisors is an integer number (272149228230).

Almost surely, 2^{1063856073947} is an apocalyptic number.

1063856073947 is a deficient number, since it is larger than the sum of its proper divisors (24740838973).

1063856073947 is an equidigital number, since it uses as much as digits as its factorization.

1063856073947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24740838972.

The product of its (nonzero) digits is 22861440, while the sum is 59.

The spelling of 1063856073947 in words is "one trillion, sixty-three billion, eight hundred fifty-six million, seventy-three thousand, nine hundred forty-seven".