9437318641 has 8 divisors (see below), whose sum is σ = 9503490600. Its totient is φ = 9371184768.

The previous prime is 9437318633. The next prime is 9437318663. The reversal of 9437318641 is 1468137349.

It can be written as a sum of positive squares in 4 ways, for example, as 1530374400 + 7906944241 = 39120^2 + 88921^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9437318641 - 2³ = 9437318633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9437318591 and 9437318600.

It is not an unprimeable number, because it can be changed into a prime (9437318441) 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, 641925 + ... + 656461.

It is an arithmetic number, because the mean of its divisors is an integer number (1187936325).

Almost surely, 2^9437318641 is an apocalyptic number.

It is an amenable number.

9437318641 is a deficient number, since it is larger than the sum of its proper divisors (66171959).

9437318641 is a wasteful number, since it uses less digits than its factorization.

9437318641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19043.

The product of its digits is 435456, while the sum is 46.

The square root of 9437318641 is about 97145.8627065507. The cubic root of 9437318641 is about 2113.2434891305.

The spelling of 9437318641 in words is "nine billion, four hundred thirty-seven million, three hundred eighteen thousand, six hundred forty-one".