7538448357 has 64 divisors (see below), whose sum is σ = 12454041600. Its totient is φ = 4468383360.

The previous prime is 7538448319. The next prime is 7538448367.

It is a happy number.

7538448357 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7538448357 - 2¹⁰ = 7538447333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7538448367) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2537569 + ... + 2540537.

It is an arithmetic number, because the mean of its divisors is an integer number (194594400).

Almost surely, 2^7538448357 is an apocalyptic number.

It is an amenable number.

7538448357 is a deficient number, since it is larger than the sum of its proper divisors (4915593243).

7538448357 is a wasteful number, since it uses less digits than its factorization.

7538448357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175 (or 3169 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The square root of 7538448357 is about 86824.2383035981. The cubic root of 7538448357 is about 1960.7730149705.

The spelling of 7538448357 in words is "seven billion, five hundred thirty-eight million, four hundred forty-eight thousand, three hundred fifty-seven".