2643457351453 has 16 divisors (see below), whose sum is σ = 2835774489600. Its totient is φ = 2456481867840.

The previous prime is 2643457351387. The next prime is 2643457351487. The reversal of 2643457351453 is 3541537543462.

It is a de Polignac number, because none of the positive numbers 2^k-2643457351453 is a prime.

It is a super-2 number, since 2×2643457351453² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2643457351453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643457351853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3872523 + ... + 4503703.

It is an arithmetic number, because the mean of its divisors is an integer number (177235905600).

Almost surely, 2^{2643457351453} is an apocalyptic number.

It is an amenable number.

2643457351453 is a deficient number, since it is larger than the sum of its proper divisors (192317138147).

2643457351453 is a wasteful number, since it uses less digits than its factorization.

2643457351453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635412.

The product of its digits is 18144000, while the sum is 52.

The spelling of 2643457351453 in words is "two trillion, six hundred forty-three billion, four hundred fifty-seven million, three hundred fifty-one thousand, four hundred fifty-three".