7654545656543 has 4 divisors (see below), whose sum is σ = 7861425268920. Its totient is φ = 7447666044168.

The previous prime is 7654545656533. The next prime is 7654545656573. The reversal of 7654545656543 is 3456565454567.

7654545656543 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is not a de Polignac number, because 7654545656543 - 2⁸ = 7654545656287 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 7654545656543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7654545656533) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103439806133 + ... + 103439806206.

It is an arithmetic number, because the mean of its divisors is an integer number (1965356317230).

Almost surely, 2^{7654545656543} is an apocalyptic number.

7654545656543 is a deficient number, since it is larger than the sum of its proper divisors (206879612377).

7654545656543 is a wasteful number, since it uses less digits than its factorization.

7654545656543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206879612376.

The product of its digits is 907200000, while the sum is 65.

The spelling of 7654545656543 in words is "seven trillion, six hundred fifty-four billion, five hundred forty-five million, six hundred fifty-six thousand, five hundred forty-three".