7547638315 has 48 divisors (see below), whose sum is σ = 10730646720. Its totient is φ = 5080508160.

The previous prime is 7547638309. The next prime is 7547638367. The reversal of 7547638315 is 5138367457.

7547638315 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7547638315 - 2⁷ = 7547638187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4678449 + ... + 4680061.

It is an arithmetic number, because the mean of its divisors is an integer number (223555140).

Almost surely, 2^7547638315 is an apocalyptic number.

7547638315 is a deficient number, since it is larger than the sum of its proper divisors (3183008405).

7547638315 is a wasteful number, since it uses less digits than its factorization.

7547638315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972 (or 1965 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 49.

The square root of 7547638315 is about 86877.1449519377. The cubic root of 7547638315 is about 1961.5694699523.

The spelling of 7547638315 in words is "seven billion, five hundred forty-seven million, six hundred thirty-eight thousand, three hundred fifteen".