964545554641 has 4 divisors (see below), whose sum is σ = 965409070132. Its totient is φ = 963682039152.

The previous prime is 964545554611. The next prime is 964545554669. The reversal of 964545554641 is 146455545469.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146455545469 = 4793 ⋅30556133.

It can be written as a sum of positive squares in 2 ways, for example, as 532456252416 + 432089302225 = 729696^2 + 657335^2 .

It is a cyclic number.

It is not a de Polignac number, because 964545554641 - 2¹³ = 964545546449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (964545554611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431756070 + ... + 431758303.

It is an arithmetic number, because the mean of its divisors is an integer number (241352267533).

Almost surely, 2^964545554641 is an apocalyptic number.

It is an amenable number.

964545554641 is a deficient number, since it is larger than the sum of its proper divisors (863515491).

964545554641 is a wasteful number, since it uses less digits than its factorization.

964545554641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863515490.

The product of its digits is 51840000, while the sum is 58.

The spelling of 964545554641 in words is "nine hundred sixty-four billion, five hundred forty-five million, five hundred fifty-four thousand, six hundred forty-one".