2856345390653 has 4 divisors (see below), whose sum is σ = 2903170724988. Its totient is φ = 2809520056320.

The previous prime is 2856345390643. The next prime is 2856345390671. The reversal of 2856345390653 is 3560935436582.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1454115221689 + 1402230168964 = 1205867^2 + 1184158^2 .

It is a cyclic number.

It is not a de Polignac number, because 2856345390653 - 2⁸ = 2856345390397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2856345390592 and 2856345390601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856345390643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23412667076 + ... + 23412667197.

It is an arithmetic number, because the mean of its divisors is an integer number (725792681247).

Almost surely, 2^{2856345390653} is an apocalyptic number.

It is an amenable number.

2856345390653 is a deficient number, since it is larger than the sum of its proper divisors (46825334335).

2856345390653 is an equidigital number, since it uses as much as digits as its factorization.

2856345390653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46825334334.

The product of its (nonzero) digits is 69984000, while the sum is 59.

The spelling of 2856345390653 in words is "two trillion, eight hundred fifty-six billion, three hundred forty-five million, three hundred ninety thousand, six hundred fifty-three".