7485047979 has 4 divisors (see below), whose sum is σ = 9980063976. Its totient is φ = 4990031984.

The previous prime is 7485047939. The next prime is 7485048017. The reversal of 7485047979 is 9797405847.

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 7485047979 - 2⁹ = 7485047467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7485047909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247507994 + ... + 1247507999.

It is an arithmetic number, because the mean of its divisors is an integer number (2495015994).

Almost surely, 2^7485047979 is an apocalyptic number.

7485047979 is a deficient number, since it is larger than the sum of its proper divisors (2495015997).

7485047979 is a wasteful number, since it uses less digits than its factorization.

7485047979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495015996.

The product of its (nonzero) digits is 17781120, while the sum is 60.

The square root of 7485047979 is about 86516.1717773042. The cubic root of 7485047979 is about 1956.1321733631.

The spelling of 7485047979 in words is "seven billion, four hundred eighty-five million, forty-seven thousand, nine hundred seventy-nine".