7482538778 has 32 divisors (see below), whose sum is σ = 13198030272. Its totient is φ = 3136665600.

The previous prime is 7482538771. The next prime is 7482538829. The reversal of 7482538778 is 8778352847.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7482538771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318413 + ... + 341103.

It is an arithmetic number, because the mean of its divisors is an integer number (412438446).

Almost surely, 2^7482538778 is an apocalyptic number.

7482538778 is a deficient number, since it is larger than the sum of its proper divisors (5715491494).

7482538778 is a wasteful number, since it uses less digits than its factorization.

7482538778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23870.

The product of its digits is 21073920, while the sum is 59.

The square root of 7482538778 is about 86501.6692208884. The cubic root of 7482538778 is about 1955.9135652174.

The spelling of 7482538778 in words is "seven billion, four hundred eighty-two million, five hundred thirty-eight thousand, seven hundred seventy-eight".