7541075538 has 40 divisors (see below), whose sum is σ = 17019211440. Its totient is φ = 2495600280.

The previous prime is 7541075513. The next prime is 7541075567. The reversal of 7541075538 is 8355701457.

It is a happy number.

7541075538 is a `hidden beast` number, since 7 + 5 + 4 + 107 + 5 + 538 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7541075493 and 7541075502.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 144928 + ... + 189963.

It is an arithmetic number, because the mean of its divisors is an integer number (425480286).

Almost surely, 2^7541075538 is an apocalyptic number.

7541075538 is an abundant number, since it is smaller than the sum of its proper divisors (9478135902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7541075538 is a wasteful number, since it uses less digits than its factorization.

7541075538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335044 (or 335035 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The square root of 7541075538 is about 86839.3662920222. The cubic root of 7541075538 is about 1961.0007677327. Note that the first 3 decimals are identical.

The spelling of 7541075538 in words is "seven billion, five hundred forty-one million, seventy-five thousand, five hundred thirty-eight".