8391445698 has 16 divisors (see below), whose sum is σ = 16784150976. Its totient is φ = 2796938640.

The previous prime is 8391445697. The next prime is 8391445709. The reversal of 8391445698 is 8965441938.

It is not an unprimeable number, because it can be changed into a prime (8391445691) 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, 49315 + ... + 138617.

It is an arithmetic number, because the mean of its divisors is an integer number (1049009436).

Almost surely, 2^8391445698 is an apocalyptic number.

8391445698 is an abundant number, since it is smaller than the sum of its proper divisors (8392705278).

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

8391445698 is a wasteful number, since it uses less digits than its factorization.

8391445698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104969.

The product of its digits is 7464960, while the sum is 57.

The square root of 8391445698 is about 91604.8344684930. The cubic root of 8391445698 is about 2032.1024347024.

The spelling of 8391445698 in words is "eight billion, three hundred ninety-one million, four hundred forty-five thousand, six hundred ninety-eight".