8038457641 has 4 divisors (see below), whose sum is σ = 8038696900. Its totient is φ = 8038218384.

The previous prime is 8038457639. The next prime is 8038457671. The reversal of 8038457641 is 1467548308.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6839290000 + 1199167641 = 82700^2 + 34629^2 .

It is a cyclic number.

It is not a de Polignac number, because 8038457641 - 2¹ = 8038457639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8038457591 and 8038457600.

It is not an unprimeable number, because it can be changed into a prime (8038457671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58986 + ... + 139843.

It is an arithmetic number, because the mean of its divisors is an integer number (2009674225).

Almost surely, 2^8038457641 is an apocalyptic number.

It is an amenable number.

8038457641 is a deficient number, since it is larger than the sum of its proper divisors (239259).

8038457641 is a wasteful number, since it uses less digits than its factorization.

8038457641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239258.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 8038457641 is about 89657.4460990274. The cubic root of 8038457641 is about 2003.1996817053.

The spelling of 8038457641 in words is "eight billion, thirty-eight million, four hundred fifty-seven thousand, six hundred forty-one".