816241647592 has 24 divisors (see below), whose sum is σ = 1780322982210. Its totient is φ = 349817848800.

The previous prime is 816241647569. The next prime is 816241647593. The reversal of 816241647592 is 295746142618.

It can be written as a sum of positive squares in only one way, i.e., 753448304196 + 62793343396 = 868014^2 + 250586^2 .

It is not an unprimeable number, because it can be changed into a prime (816241647593) 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 5 ways as a sum of consecutive naturals, for example, 1041124159 + ... + 1041124942.

Almost surely, 2^816241647592 is an apocalyptic number.

It is an amenable number.

816241647592 is an abundant number, since it is smaller than the sum of its proper divisors (964081334618).

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

816241647592 is a wasteful number, since it uses less digits than its factorization.

816241647592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082249121 (or 2082249110 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 816241647592 in words is "eight hundred sixteen billion, two hundred forty-one million, six hundred forty-seven thousand, five hundred ninety-two".