3997430468641 has 8 divisors (see below), whose sum is σ = 4108449230720. Its totient is φ = 3887922166128.

The previous prime is 3997430468639. The next prime is 3997430468651. The reversal of 3997430468641 is 1468640347993.

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 3997430468641 - 2¹ = 3997430468639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3997430468621) 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, 377609526 + ... + 377620111.

It is an arithmetic number, because the mean of its divisors is an integer number (513556153840).

Almost surely, 2^{3997430468641} is an apocalyptic number.

It is an amenable number.

3997430468641 is a deficient number, since it is larger than the sum of its proper divisors (111018762079).

3997430468641 is an equidigital number, since it uses as much as digits as its factorization.

3997430468641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755229783.

The product of its (nonzero) digits is 94058496, while the sum is 64.

The spelling of 3997430468641 in words is "three trillion, nine hundred ninety-seven billion, four hundred thirty million, four hundred sixty-eight thousand, six hundred forty-one".