8331744642 has 32 divisors (see below), whose sum is σ = 19000904832. Its totient is φ = 2412812544.

The previous prime is 8331744623. The next prime is 8331744653. The reversal of 8331744642 is 2464471338.

It is a junction number, because it is equal to n+sod(n) for n = 8331744594 and 8331744603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3140358 + ... + 3143009.

It is an arithmetic number, because the mean of its divisors is an integer number (593778276).

Almost surely, 2^8331744642 is an apocalyptic number.

8331744642 is an abundant number, since it is smaller than the sum of its proper divisors (10669160190).

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

8331744642 is a wasteful number, since it uses less digits than its factorization.

8331744642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283402.

The product of its digits is 387072, while the sum is 42.

The square root of 8331744642 is about 91278.3908819607. The cubic root of 8331744642 is about 2027.2718204484.

The spelling of 8331744642 in words is "eight billion, three hundred thirty-one million, seven hundred forty-four thousand, six hundred forty-two".