8133390744 has 72 divisors (see below), whose sum is σ = 20888032380. Its totient is φ = 2639114240.

The previous prime is 8133390739. The next prime is 8133390761. The reversal of 8133390744 is 4470933318.

It is a junction number, because it is equal to n+sod(n) for n = 8133390696 and 8133390705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18114232 + ... + 18114680.

Almost surely, 2^8133390744 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 8133390744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10444016190).

8133390744 is an abundant number, since it is smaller than the sum of its proper divisors (12754641636).

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

8133390744 is an equidigital number, since it uses as much as digits as its factorization.

8133390744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 8133390744 is about 90185.3133497911. The cubic root of 8133390744 is about 2011.0546797818.

The spelling of 8133390744 in words is "eight billion, one hundred thirty-three million, three hundred ninety thousand, seven hundred forty-four".