8419990686 has 16 divisors (see below), whose sum is σ = 17198279424. Its totient is φ = 2746947224.

The previous prime is 8419990681. The next prime is 8419990687. The reversal of 8419990686 is 6860999148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8419990681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14928780 + ... + 14929343.

It is an arithmetic number, because the mean of its divisors is an integer number (1074892464).

Almost surely, 2^8419990686 is an apocalyptic number.

8419990686 is an abundant number, since it is smaller than the sum of its proper divisors (8778288738).

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

8419990686 is a wasteful number, since it uses less digits than its factorization.

8419990686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29858175.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 8419990686 is about 91760.5072239686. The cubic root of 8419990686 is about 2034.4040123158.

The spelling of 8419990686 in words is "eight billion, four hundred nineteen million, nine hundred ninety thousand, six hundred eighty-six".