2643112256653 has 4 divisors (see below), whose sum is σ = 2883395189088. Its totient is φ = 2402829324220.

The previous prime is 2643112256651. The next prime is 2643112256677. The reversal of 2643112256653 is 3566522113462.

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 2643112256653 - 2¹ = 2643112256651 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 (2643112256651) 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, 120141466201 + ... + 120141466222.

It is an arithmetic number, because the mean of its divisors is an integer number (720848797272).

Almost surely, 2^{2643112256653} is an apocalyptic number.

It is an amenable number.

2643112256653 is a deficient number, since it is larger than the sum of its proper divisors (240282932435).

2643112256653 is a wasteful number, since it uses less digits than its factorization.

2643112256653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240282932434.

The product of its digits is 1555200, while the sum is 46.

The spelling of 2643112256653 in words is "two trillion, six hundred forty-three billion, one hundred twelve million, two hundred fifty-six thousand, six hundred fifty-three".