964557849617 has 4 divisors (see below), whose sum is σ = 966475460160. Its totient is φ = 962640239076.

The previous prime is 964557849601. The next prime is 964557849623. The reversal of 964557849617 is 716948755469.

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 not a de Polignac number, because 964557849617 - 2⁴ = 964557849601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (964557849517) 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, 958804517 + ... + 958805522.

It is an arithmetic number, because the mean of its divisors is an integer number (241618865040).

Almost surely, 2^964557849617 is an apocalyptic number.

It is an amenable number.

964557849617 is a deficient number, since it is larger than the sum of its proper divisors (1917610543).

964557849617 is a wasteful number, since it uses less digits than its factorization.

964557849617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917610542.

The product of its digits is 457228800, while the sum is 71.

The spelling of 964557849617 in words is "nine hundred sixty-four billion, five hundred fifty-seven million, eight hundred forty-nine thousand, six hundred seventeen".