1012646306563 has 4 divisors (see below), whose sum is σ = 1012650206128. Its totient is φ = 1012642407000.

The previous prime is 1012646306557. The next prime is 1012646306713. The reversal of 1012646306563 is 3656036462101.

1012646306563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1012646306563 - 2⁹ = 1012646306051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012646306543) 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, 1530156 + ... + 2089657.

It is an arithmetic number, because the mean of its divisors is an integer number (253162551532).

Almost surely, 2^{1012646306563} is an apocalyptic number.

1012646306563 is a deficient number, since it is larger than the sum of its proper divisors (3899565).

1012646306563 is an equidigital number, since it uses as much as digits as its factorization.

1012646306563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899564.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 1012646306563 in words is "one trillion, twelve billion, six hundred forty-six million, three hundred six thousand, five hundred sixty-three".