8413989816 has 32 divisors (see below), whose sum is σ = 21037222800. Its totient is φ = 2804363520.

The previous prime is 8413989757. The next prime is 8413989817. The reversal of 8413989816 is 6189893148.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8413989817) 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, 424446 + ... + 443826.

Almost surely, 2^8413989816 is an apocalyptic number.

It is an amenable number.

8413989816 is an abundant number, since it is smaller than the sum of its proper divisors (12623232984).

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

8413989816 is a wasteful number, since it uses less digits than its factorization.

8413989816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37479 (or 37475 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 57.

The square root of 8413989816 is about 91727.8028516981. The cubic root of 8413989816 is about 2033.9205954950.

The spelling of 8413989816 in words is "eight billion, four hundred thirteen million, nine hundred eighty-nine thousand, eight hundred sixteen".