9466866537649 has 4 divisors (see below), whose sum is σ = 9486630351360. Its totient is φ = 9447102723940.

The previous prime is 9466866537467. The next prime is 9466866537671. The reversal of 9466866537649 is 9467356686649.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9466866537649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9466866537449) 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, 9881906137 + ... + 9881907094.

It is an arithmetic number, because the mean of its divisors is an integer number (2371657587840).

Almost surely, 2^{9466866537649} is an apocalyptic number.

It is an amenable number.

9466866537649 is a deficient number, since it is larger than the sum of its proper divisors (19763813711).

9466866537649 is a wasteful number, since it uses less digits than its factorization.

9466866537649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19763813710.

The product of its digits is 8465264640, while the sum is 79.

The spelling of 9466866537649 in words is "nine trillion, four hundred sixty-six billion, eight hundred sixty-six million, five hundred thirty-seven thousand, six hundred forty-nine".