8020394641 has 8 divisors (see below), whose sum is σ = 9167241600. Its totient is φ = 6873816768.

The previous prime is 8020394597. The next prime is 8020394677. The reversal of 8020394641 is 1464930208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8020394641 - 2¹³ = 8020386449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8020394641.

It is not an unprimeable number, because it can be changed into a prime (8020364641) 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, 1260 + ... + 126658.

It is an arithmetic number, because the mean of its divisors is an integer number (1145905200).

Almost surely, 2^8020394641 is an apocalyptic number.

It is an amenable number.

8020394641 is a deficient number, since it is larger than the sum of its proper divisors (1146846959).

8020394641 is a wasteful number, since it uses less digits than its factorization.

8020394641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134543.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 8020394641 is about 89556.6560396267. The cubic root of 8020394641 is about 2001.6981112178.

The spelling of 8020394641 in words is "eight billion, twenty million, three hundred ninety-four thousand, six hundred forty-one".