7980816503 has 16 divisors (see below), whose sum is σ = 8750592000. Its totient is φ = 7218516480.

The previous prime is 7980816499. The next prime is 7980816509. The reversal of 7980816503 is 3056180897.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7980816503 - 2² = 7980816499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7980816509) 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, 1889528 + ... + 1893746.

It is an arithmetic number, because the mean of its divisors is an integer number (546912000).

Almost surely, 2^7980816503 is an apocalyptic number.

7980816503 is a deficient number, since it is larger than the sum of its proper divisors (769775497).

7980816503 is a wasteful number, since it uses less digits than its factorization.

7980816503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 7980816503 is about 89335.4157263512. The cubic root of 7980816503 is about 1998.4000957445.

The spelling of 7980816503 in words is "seven billion, nine hundred eighty million, eight hundred sixteen thousand, five hundred three".