7940037503 has 4 divisors (see below), whose sum is σ = 7940283288. Its totient is φ = 7939791720.

The previous prime is 7940037499. The next prime is 7940037593. The reversal of 7940037503 is 3057300497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3057300497 = 30677 ⋅99661.

It is a cyclic number.

It is not a de Polignac number, because 7940037503 - 2² = 7940037499 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 (7940037593) 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, 65501 + ... + 142022.

It is an arithmetic number, because the mean of its divisors is an integer number (1985070822).

Almost surely, 2^7940037503 is an apocalyptic number.

7940037503 is a deficient number, since it is larger than the sum of its proper divisors (245785).

7940037503 is a wasteful number, since it uses less digits than its factorization.

7940037503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245784.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 7940037503 is about 89106.8880783074. Note that the first 3 decimals coincide. The cubic root of 7940037503 is about 1994.9905886244.

The spelling of 7940037503 in words is "seven billion, nine hundred forty million, thirty-seven thousand, five hundred three".