8438519794516 has 72 divisors (see below), whose sum is σ = 18268961161920. Its totient is φ = 3390844488192.

The previous prime is 8438519794451. The next prime is 8438519794531. The reversal of 8438519794516 is 6154979158348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11319096 + ... + 12041551.

Almost surely, 2^{8438519794516} is an apocalyptic number.

It is an amenable number.

8438519794516 is an abundant number, since it is smaller than the sum of its proper divisors (9830441367404).

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

8438519794516 is a wasteful number, since it uses less digits than its factorization.

8438519794516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23360781 (or 23360772 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 70.

The spelling of 8438519794516 in words is "eight trillion, four hundred thirty-eight billion, five hundred nineteen million, seven hundred ninety-four thousand, five hundred sixteen".