7940302643503 has 4 divisors (see below), whose sum is σ = 7940309760360. Its totient is φ = 7940295526648.

The previous prime is 7940302643437. The next prime is 7940302643509. The reversal of 7940302643503 is 3053462030497.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7940302643503 is a prime.

It is a super-2 number, since 2×7940302643503² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940302643509) 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, 1480348 + ... + 4251121.

It is an arithmetic number, because the mean of its divisors is an integer number (1985077440090).

Almost surely, 2^{7940302643503} is an apocalyptic number.

7940302643503 is a deficient number, since it is larger than the sum of its proper divisors (7116857).

7940302643503 is a wasteful number, since it uses less digits than its factorization.

7940302643503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7116856.

The product of its (nonzero) digits is 1632960, while the sum is 46.

The spelling of 7940302643503 in words is "seven trillion, nine hundred forty billion, three hundred two million, six hundred forty-three thousand, five hundred three".