8120438567872 has 56 divisors (see below), whose sum is σ = 16147088305200. Its totient is φ = 4051889448960.

The previous prime is 8120438567869. The next prime is 8120438567881. The reversal of 8120438567872 is 2787658340218.

It is a self number, because there is not a number n which added to its sum of digits gives 8120438567872.

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, 61523004 + ... + 61654852.

Almost surely, 2^{8120438567872} is an apocalyptic number.

It is an amenable number.

8120438567872 is a deficient number, since it is larger than the sum of its proper divisors (8026649737328).

8120438567872 is a wasteful number, since it uses less digits than its factorization.

8120438567872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133829 (or 133819 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 61.

The spelling of 8120438567872 in words is "eight trillion, one hundred twenty billion, four hundred thirty-eight million, five hundred sixty-seven thousand, eight hundred seventy-two".