7538134328 has 32 divisors (see below), whose sum is σ = 14952720000. Its totient is φ = 3552737760.

The previous prime is 7538134327. The next prime is 7538134367. The reversal of 7538134328 is 8234318357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7538134327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94358 + ... + 154853.

It is an arithmetic number, because the mean of its divisors is an integer number (467272500).

Almost surely, 2^7538134328 is an apocalyptic number.

It is an amenable number.

7538134328 is a deficient number, since it is larger than the sum of its proper divisors (7414585672).

7538134328 is a wasteful number, since it uses less digits than its factorization.

7538134328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249435 (or 249431 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 7538134328 is about 86822.4298669416. The cubic root of 7538134328 is about 1960.7457879643.

The spelling of 7538134328 in words is "seven billion, five hundred thirty-eight million, one hundred thirty-four thousand, three hundred twenty-eight".