7240537206403 has 4 divisors (see below), whose sum is σ = 7241410515528. Its totient is φ = 7239663897280.

The previous prime is 7240537206377. The next prime is 7240537206443. The reversal of 7240537206403 is 3046027350427.

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

It is a cyclic number.

It is not a de Polignac number, because 7240537206403 - 2²¹ = 7240535109251 is a prime.

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 7240537206403.

It is not an unprimeable number, because it can be changed into a prime (7240537206443) 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, 436642126 + ... + 436658707.

It is an arithmetic number, because the mean of its divisors is an integer number (1810352628882).

Almost surely, 2^{7240537206403} is an apocalyptic number.

7240537206403 is a deficient number, since it is larger than the sum of its proper divisors (873309125).

7240537206403 is an equidigital number, since it uses as much as digits as its factorization.

7240537206403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873309124.

The product of its (nonzero) digits is 846720, while the sum is 43.

The spelling of 7240537206403 in words is "seven trillion, two hundred forty billion, five hundred thirty-seven million, two hundred six thousand, four hundred three".