7275243768445 has 16 divisors (see below), whose sum is σ = 8836691431680. Its totient is φ = 5749385457024.

The previous prime is 7275243768433. The next prime is 7275243768451. The reversal of 7275243768445 is 5448673425727.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7275243768445 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7216929 + ... + 8162998.

It is an arithmetic number, because the mean of its divisors is an integer number (552293214480).

Almost surely, 2^{7275243768445} is an apocalyptic number.

It is an amenable number.

7275243768445 is a deficient number, since it is larger than the sum of its proper divisors (1561447663235).

7275243768445 is a wasteful number, since it uses less digits than its factorization.

7275243768445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15381084.

The product of its digits is 316108800, while the sum is 64.

The spelling of 7275243768445 in words is "seven trillion, two hundred seventy-five billion, two hundred forty-three million, seven hundred sixty-eight thousand, four hundred forty-five".