8145038717438 has 16 divisors (see below), whose sum is σ = 13973840609280. Its totient is φ = 3488001605496.

The previous prime is 8145038717341. The next prime is 8145038717483. The reversal of 8145038717438 is 8347178305418.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227420906 + ... + 227456717.

It is an arithmetic number, because the mean of its divisors is an integer number (873365038080).

Almost surely, 2^{8145038717438} is an apocalyptic number.

8145038717438 is a deficient number, since it is larger than the sum of its proper divisors (5828801891842).

8145038717438 is a wasteful number, since it uses less digits than its factorization.

8145038717438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454878911.

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 8145038717438 in words is "eight trillion, one hundred forty-five billion, thirty-eight million, seven hundred seventeen thousand, four hundred thirty-eight".