964652375221 has 4 divisors (see below), whose sum is σ = 964897028512. Its totient is φ = 964407721932.

The previous prime is 964652375209. The next prime is 964652375231. The reversal of 964652375221 is 122573256469.

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 not a de Polignac number, because 964652375221 - 2³¹ = 962504891573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964652375201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122320731 + ... + 122328616.

It is an arithmetic number, because the mean of its divisors is an integer number (241224257128).

Almost surely, 2^964652375221 is an apocalyptic number.

It is an amenable number.

964652375221 is a deficient number, since it is larger than the sum of its proper divisors (244653291).

964652375221 is a wasteful number, since it uses less digits than its factorization.

964652375221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244653290.

The product of its digits is 5443200, while the sum is 52.

The spelling of 964652375221 in words is "nine hundred sixty-four billion, six hundred fifty-two million, three hundred seventy-five thousand, two hundred twenty-one".