8207899786944 has 672 divisors, whose sum is σ = 29835921024000. Its totient is φ = 2120352030720.

The previous prime is 8207899786943. The next prime is 8207899786979. The reversal of 8207899786944 is 4496879987028.

It is not an unprimeable number, because it can be changed into a prime (8207899786943) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54864757 + ... + 55014155.

It is an arithmetic number, because the mean of its divisors is an integer number (44398692000).

Almost surely, 2^{8207899786944} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8207899786944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14917960512000).

8207899786944 is an abundant number, since it is smaller than the sum of its proper divisors (21628021237056).

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

8207899786944 is a wasteful number, since it uses less digits than its factorization.

8207899786944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149493 (or 149480 counting only the distinct ones).

The product of its (nonzero) digits is 3511517184, while the sum is 81.

The spelling of 8207899786944 in words is "eight trillion, two hundred seven billion, eight hundred ninety-nine million, seven hundred eighty-six thousand, nine hundred forty-four".